Archive for the 'Outdoors' Category

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Comparison of SSL/LEDs to Other Lighting Technology

Wednesday, December 15th, 2010

The China Manufacturer of lighting generally knows that, incandescent lamps(light bulbs) create light by running electricity through a thin filament, thereby heating the filament to a very high temperature so that it glows and produces visible light. A broad range of visible frequencies are naturally produced, yielding a pleasing warm yellow or white color quality. The incandescing process, however, is highly inefficient, as over 98% of its energy input is emitted as heat. A standard 100 watt 120 VAC light bulb produces about 1700 lumens, about 17 lumens per watt. Incandescent lamps are relatively inexpensive to produce. The typical lifespan of a mains incandescent lamp is about 1,000 hours. They work well with dimmers. Most existing light fixtures are designed for the size and shape of these traditional bulbs. Fluorescent lamps (light bulbs) work by passing electricity through mercury vapor, which in turn produces ultraviolet light. 

 

The ultraviolet light is then absorbed by a phosphor coating inside the lamp, causing it to glow, or fluoresce. While the heat generated by fluorescent lamp is much less than incandescent counterpart, energy is still lost in generating the ultraviolet light and converting this light into visible light. If the lamp breaks exposure to mercury can occur. Linear fluorescent lamp are typically five to six times the cost of incandescent lamps, but have life span around 10,000 and 20,000 hours. Lifetime varies from 1,200 hours to 20,000 hours for compact fluorescent lamps. 

 

The efficacy of fluorescent tubes with modern electronic ballast commonly averages 50 to 67 lm/W overall. Most compact fluorescents 13 watts or more with integral electronic ballasts achieve about 60 lumens/watt. They should be recycled rather than disposed to prevent mercury release. Some flicker at 100 or 120Hz,and the quality of the light tends to be a harsh white because of the lack of a broad band of frequencies. Most are not compatible with dimmers.  SSL/LEDs LEDs come in multiple colors, which are produced without the need for filters. A white SSL can be comprised of a single high-power LED, multiple white LEDs, or from LEDs of different colors mixed to produce white light.

 

Advantages include: 

High efficiency – LEDs are now available that reliably offer over 100 lumens from a one-watt device or much higher outputs at higher drive currents.

Small size – provides design flexibility, arranged in rows, rings, clusters, or individual points 

High durability – no filament or tube to break, which gives a convenience to the Street Light Manufacturer.   

Life span – in properly engineered lamps, LEDs can last 50,000 – 60,000 hours 

Full dim ability – unlike fluorescent lamps, LEDs can be dimmed using pulse-width modulation (PWM – turning the light on and off very quickly at varying intervals). This also allows full color mixing in lamps with LEDs of different colors. Mercury-free-unlike fluorescent and most HID technologies, LEDs contain no hazardous mercury or halogen gases. 

 

However, some current models are not compatible with standard dimmers. It is not currently practical to produce high level of room lighting. As a result, current LED screw-in light bulbs offer either low levels of light at a moderate cost, or moderate levels of light at a high cost. In contrast to other lighting technologies, LED light tends to be directional. This is disadvantage for most general lighting applications, but can be an advantage for spot or LED Flood Light.

 

Because individual LEDs are low-voltage DC devices, implementing SSL to operate from mains AC requires well designed circuitry and a thermal case to dissipate the heat.

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Posted in Outdoors | No Comments »

Second Hand Jeep Cherokee (1993 – 2001) Review

Sunday, July 18th, 2010

If you don’t want what importers Chrysler describe as a ‘Jeep Imitation’, then look here first. The implication is clear; there are cheaper used(second hand car) luxury four-wheel drives (though not many) but none that can match ‘the genuine article’. Devotees of wimpy Japanese mud-pluggers should look elsewhere; the Jeep Cherokee is as American as Budweiser and as tough as Lee Marvin. And that’s fine with British buyers. In its first few years on the UK market, the car took the 4×4 sector by storm. New model interest has waned however, in recent years and as a result, there are now a fair number of high quality used Cherokees on the market.

The least that you’ll find a Cherokee for will be about £2,500, which buys you an early 1993 2.5-litre Sport. Pay more and you can get a considerable better vehicle with a 98R 2.5 Sport fetching £4,400. The 4.0-litre models are thirsty but you can now get one for only a fraction more than the 2.5-litre cars. Pay £4,700 for a 98R Sport or £6,500 for one of the last Classic Models on a Y-plate.
The turbo diesels start at £4,000 for the first of the 1995 M-plate Sport models. A more typical Limited version with leather trim will be priced from around £4,900 for a 1997 P plated car.

As an all-rounder, the Cherokee makes a good effort at what is a difficult task – driving like a car yet having the ability to tackle forest trails and muddy hills should the owner’s mood take them. It’s usefully smaller than a Land Rover Discovery, yet off-road, ultimately less able. That won’t matter too much to most of us, so if you like your all-road vehicles American-style, the second hand car of Cherokee could be for you

Posted in Cycling, Outdoors, Repairs | No Comments »

Jeep Gladiator – History

Monday, January 25th, 2010

Where does the Jeep Gladiator fit into the great history of the Jeep line of vehicles. Jeep from its lowly beginnings has risen to the level of a status vehicle for many in the market today.

The Jeep vehicle name started out in the bare bones military unit. Simply designed to meet the rigors of being in the field.

The original JEEP as it was known back in February of 1941 was so named because the vehicle actually did not have a name. In a test drive of the Willys-Overland scout car took a demonstration ride up the Capital steps. When the reporter asked the driver Irving “Red” Haussman the name of the vehicle he said “It’s a jeep“. The name was then published across the nation in the review article and a new automotive brand was borne.

Willys-Overland inc was awarded the name as it owned the manufacture rights of the first military vehicles. The Jeep went on to nobally serve in World War II. When the soldiers arrived back from the fronts they wanted the Jeeps they had driven during the war.

Willys-Overland was more than willing to produce this grand little car for the common market. The Jeep CJ-2 was the first commercially available vehicle and stayed in basic production through the Jeep CJ-7.

The Jeep CJ-7 was the last military variant of the great Jeep nomenclature. The final Jeep CJ-7 rolled off the production line in the United States in 1987. It was subplanted with the Jeep brand Wrangler or YJ. The YJ for many was designated as the Yuppie Jeep as it had a lower running height and more supple suspension. This Jeep remained in production for 10 years.

In 1997 the YJ was replaced by the current TJ production unit. This unit along with many small tweaks went back to the original Jeeps round headlights. In 2007 the Jeep YJ is slated to be replaced by the Jeep JK model vehicle.

The JK model of vehicles will include three separate variants. The first Jeep variant will be a short wheelbase two door model that will be the direct replacement to the Jeep YJ and hold true to the original form of this model line.

The second model will be a four door variant with a slightly increased wheelbase for those wanting more functionality out of the Jeep. This vehicle should also be better equipped for the less outdoor slanted owner.

The final version will be a pick-up variant Nicknamed the Gladiator. The Jeep Gladiator will feature a slightly extended cab. This will not feature a jump-seat for the kids but allow for storage of small items such as laptops, book-bags, overnight bags, and the like.

The bed of this truck will be 7 foot and perfectly square. This vehicle will be rugged and ready for the trails or a quick camping trip with the buds.

The Jeep has come a long way in the last 60 plus years. This great brand is planning on moving into the future with more memorable vehicles at its back.

Posted in Outdoors | No Comments »

Jeep Gladiator History

Sunday, January 24th, 2010

Where does the Jeep Gladiator fit into the great history of the Jeep line of vehicles. Jeep from its lowly beginnings has risen to the level of a status vehicle for many in the market today.

The Jeep vehicle name started out in the bare bones military unit. Simply designed to meet the rigors of being in the field.

The original JEEP as it was known back in February of 1941 was so named because the vehicle actually did not have a name. In a test drive of the Willys-Overland scout car took a demonstration ride up the Capital steps. When the reporter asked the driver Irving “Red” Haussman the name of the vehicle he said “It’s a jeep“. The name was then published across the nation in the review article and a new automotive brand was borne.

Willys-Overland inc was awarded the name as it owned the manufacture rights of the first military vehicles. The Jeep went on to nobally serve in World War II. When the soldiers arrived back from the fronts they wanted the Jeeps they had driven during the war.

Willys-Overland was more than willing to produce this grand little car for the common market. The Jeep CJ-2 was the first commercially available vehicle and stayed in basic production through the Jeep CJ-7.

The Jeep CJ-7 was the last military variant of the great Jeep nomenclature. The final Jeep CJ-7 rolled off the production line in the United States in 1987. It was subplanted with the Jeep brand Wrangler or YJ. The YJ for many was designated as the Yuppie Jeep as it had a lower running height and more supple suspension. This Jeep remained in production for 10 years.

In 1997 the YJ was replaced by the current TJ production unit. This unit along with many small tweaks went back to the original Jeeps round headlights. In 2007 the Jeep YJ is slated to be replaced by the Jeep JK model vehicle.

The JK model of vehicles will include three separate variants. The first Jeep variant will be a short wheelbase two door model that will be the direct replacement to the Jeep YJ and hold true to the original form of this model line.

The second model will be a four door variant with a slightly increased wheelbase for those wanting more functionality out of the Jeep. This vehicle should also be better equipped for the less outdoor slanted owner.

The final version will be a pick-up variant Nicknamed the Gladiator. The Jeep Gladiator will feature a slightly extended cab. This will not feature a jump-seat for the kids but allow for storage of small items such as laptops, book-bags, overnight bags, and the like.

The bed of this truck will be 7 foot and perfectly square. This vehicle will be rugged and ready for the trails or a quick camping trip with the buds.

The Jeep has come a long way in the last 60 plus years. This great brand is planning on moving into the future with more memorable vehicles at its back.

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Posted in Outdoors | No Comments »

Is There Hope For The Jeep Wrangler?

Friday, January 22nd, 2010

OK, i have three questions. One: why are there so many soccer moms driving the wrangler? It was made for people who have a love affair with there cars and a love for the outdoors/offroading, not for trips to the mall. I mean, we can’t expect them to understand the jeep wave. two: Are other car companies coping the wranglers design? Today i saw two cars that had the jeep like soft top. And three: are the new Jeeps made with too much plastic?

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Posted in Outdoors | 8 Comments »

Is A Jeep Wrangler A Good Choice For Me?

Thursday, January 21st, 2010

I’m not quite ready to buy a car YET, but this is going to be my first car. I’ve been a slave to the bus system my entire life, and have finally found myself in a situation that I will most likely be able to get a car. I’ve had my eye on a Jeep Wrangler for a long time, I just love the outdoors-feel of it, yet its a convertible! I have yet to test drive one, but maybe some of the Jeep owners can shed some light as to whether this would be a good choice for me?
I currently live in a suburb outside of Atlanta, the traffic is light where i live, and I would rarely use it to drive into the city, which has horrendous traffic. The very flat roads get icy here sometimes in the winter, and we have rain once in awhile. My family lives up in Pittsburgh (12 hours away) Pennsylvania where there’s tons of snow, ice and hills in the winter. I’d like a car that would be good for the drive up there as well as driving where i currently live.
I love camping and all kinds of outdoorsy things, and would love a vehicle that would allow me to get into some back country areas.
I need a vehicle that is easy to repair, and extremely reliable – and a vehicle that I could learn to repair small things on. With the budget I currently have, I’m wanting to find one for under 10K if at all possible, so are Wranglers reliable cars to buy even if they have over, say, 100 thousand miles on it?
I would love something with acceptable gas mileage – i don’t need anything like a Prius gets (although that would be nice!) But compared to the wide range of vehicles out there, does the Wrangler get mileage that you can live with?
I need a vehicle that I can take at most 10 bags of groceries in to and from the store, and would like a car that I can keep a few things in the back (like my camping equipment) and not have to worry about it being stolen.
Also, I’ve read that the crash ratings are decent, would you agree?
If you don’t think a wrangler is a good choice, is there something else you can recommend?

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Posted in Outdoors | 4 Comments »

The All-new 2008 Jeep Liberty

Wednesday, January 20th, 2010

Despite the crisis that Chrysler maker of quality Jeep multi rib belt is facing it has been able to come up with best-selling models such as the Jeep Liberty. The Jeep Liberty is one of those Chrysler’s creations that have remained a leader in the mid-size sport utility SUV market since its initial introduction in the year 2002. The Jeep Liberty as its name suggest provides off-road enthusiasts and car owners with the liberty or freedom as well as capability that only Jeep can provide.

The Jeep Liberty from the ground up exudes its true legendary 4×4 heritage by providing two Jeep Trail Rate® four-wheel-drive systems-Command-Trac® and the all-new Selec-Trac® II. The Liberty’s on-road ride and handling have also been improved and refined with the new independent front suspension, new five-link rear suspension and rack-and-pinion steering.

The exterior of the Liberty has been redesigned to give it a more rugged, classic Jeep look that will surely captivate the attention of current Jeep Liberty owners as well as those other Jeep fanatics. Inside the Liberty is a cargo and storage space that has been made even more spacious. The seats were also made even more comfortable. The new Sky Slider™ full-open canvas roof which is an industry-exclusive will make its debut as part of the Jeep Liberty.

The Liberty also features remote start, rain-sensing wipers, memory seats and mirrors, and express up/down windows are added to the vehicle’s ever growing list of options. There are two models of the Liberty being offered—the Jeep Liberty Sport and the Jeep Liberty Limited.

The new Jeep Liberty is designed for those who do not only want the Jeep 4×4 capability but are also looking for comfort and convenience. The Liberty is also ideal for young couples, families, professionals, single men and women who are between 30 and 40 years old. The new Liberty can help balance day-to-day activities and at the same time functions well when extreme outdoor performance is called for. Jeep Liberty is scheduled to hit dealerships beginning the third quarter of this year.

Jeep Liberty Features

The all-new 2008 Jeep Liberty provides a balance of on-road refinement and off-road capability. It has an independent front suspension, a power rack-and-pinion steering system, all new five link rear suspension, two four-wheel-drive systems (all-new Selec-Trac II, full time four wheel drive system and Command-Trac, a part-time four wheel drive system—both are Jeep Trail Rated). The liberty is powered by a 3.7 liter SOHC V6 engine that revs up 210 hp (157 kW) at 5,200 rpm and 235 lb-ft (319 Nm) of torque at 4,000 rpm. Fuel economy has also been improved now reaching only 16 mpg for city driving and 22 mpg on highway.

There are also two transmissions offered for the Jeep Liberty in the United States and that is a six-speed manual transmission and a four speed automatic transmission. The 2008 Jeep Liberty was designed and engineered under the CDS or the Chrysler Development System which is a comprehensive, coordinated and disciplined product creation process that boost quality and production while reducing costs and encouraging practical innovation in new products.

In terms of safety and security features the 2008 Jeep Liberty is equipped with a full range of active and passive safety systems such as the Electronic Stability Program, Brake Assist, Electronic Roll Mitigation, advanced anti-lock brakes, All-speed Traction Control, tire pressure monitoring, rain sensing wipers, and side curtain air bags.

The 2008 Jeep Liberty will also feature the MyGIG Multimedia Infotainment System™ and SIRIUS Satellite Radio which provides customers throughout the US with 130 channels, including 100 percent commercial-free music, news, sports, entertainment, talk, traffic, and weather. The 2008 Jeep Liberty will also have the UConnect® hands-free communication system that uses Bluetooth Technology which enables wireless communication between the car owner’s mobile phone and the vehicle’s on-board receiver.

Posted in Outdoors | No Comments »

Make Sure your Grille and Head Lights are in Place With Jeep Header Panel

Tuesday, January 19th, 2010

A Jeep was designed to endure rough outdoor activities. In fact, it was initially produce to serve as a universal vehicle way back before World War II. Even before, it was expected that the Jeep will encounter mud, rocks and other harsh elements which may harm the vehicle. Even if Jeep vehicles are made to withstand these elements, at some point they will cause some damage to the vehicle. One of the most vulnerable component would be the the front part of the Jeep, since it will get the initial encounter. This may cause some internal problem because the main components of a car like the engine, are mostly located in front. A Jeep’s body is especially made to bear some external beatings it may encounter during rough drives outdoors. That is why aside from the tough body, Jeep has come up with numerous car parts that will enhance the performance of a car.

A good example is the Jeep header panel. This particular component is actually less exposed and noticed because most of the time it is concealed by the other elements installed to it. The Jeep header panel is the front bodywork which holds the grille, the headlights and the corner lights. Its functionality add some style as well. In fact, whenever the front components are modified, the header panel would likely to be replaced to suit transformation.

As mentioned before, the Jeep header panel holds some of the important front elements of a car, like the grille, which allows air to flow over the radiator and cool the engine compartment. The header panel also hold parts of automotive lighting system. The headlights which are very important especially when driving in a dark road. They help drivers see what is ahead of them to avoid accidents. Headlights would be especially helpful for Jeep drivers, since they are more inclined to travel on various terrains. Without the Jeep header panel, it is likely that all these elements to fall off even without any collisions.

Posted in Outdoors | No Comments »

What Do You Get A Boyfriend For His 17th Birthday?

Monday, January 18th, 2010

me and my boyfriend have been dating for 8 months and are very happy. anyways we always get eachother great gifts about 80 dollars but ive run out of ideas. ive done the shirt the cologne and the cd but for his birthday i want to spend a little more because he always gives me great gifts for special occasions, keep in mind he is 17…any ideas?
ps he is interested in his jeep and loves the outdoors he plays lacrosse and like computers and gadgets

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Posted in Outdoors | 6 Comments »

What To Do In Sedona? And Whats The Weather Like In October?

Sunday, January 17th, 2010

We will be going in October with 2 kids who love the outdoors. We were thinking about taking a pink jeep tour and maybe go to slide rock? We have never been to sedona before so do you have any suggestions for outdoor activities? and what is the weather like there in October?

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Posted in Outdoors | 3 Comments »

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