Archive for October, 2009

Our Intermediate and Medium 15mm and 25mm Based LED Lamps provides the industry’s most comprehensive source of direct incandescent replacement LED lamps for Automotive, Aviation, Decorative lighting, Architectural, Gaming, Theme-parks, Utility plants, Street lighting, Emergency/Safety and…

For decades the choice came down to a traditional bulb or a fluorescent. Even with the relatively recent introduction of CFLs ( Compact Fluorescent Lights ), incandescents always won. CFLs are much more dear and still don’t give off the same range of natural-looking light that ‘ordinary’ bulbs come much more close to. Enter LEDs.

The first time we saw light emitting diodes was in the early digital watches. But for nearly that same time period, they gave off too little light and of limited color to be helpful for home illumination. Nobody could read or cook by a dim red light.

But LED bulbs have come a long way in recent years. They produce bright, natural-spectrum white light that will illuminate a medium-sized area with one bulb.

And, not the least consideration, they last practically forever. I’ve got some LED cabinet lighting certain to burn for over 50,000 hours! Some are rated at 60,000 hours.

Add up all of the money spent on incandescents – which last from 750-1,000 hours – and the total savings is significant. If a 75-watt bulb costs $1 and an LED bulb costs $50, most will opt for the incandescent. But if the LED lasts 50 times longer, you break even.

aside from the initial outlay costs, the difference in electricity use is equally dramatic, but in the LED’s favor. Keep in mind the standard label on an incandescent is how much power it consumes, not how much light it puts out. A 60-watt incandescent bulb puts out somewhat less than nine hundred lumens.

Yet, it consumes only two watts of electricity. Multiply that electricity savings by 4 hours per day over 10 years and the cost benefits will easily outweigh the cost of the LED bulb. At 10 cents/kWh, the total savings over 10 years is about $350. So, the bulb will pay for itself in about 18 months.

At the same time, a LED bulb runs cooler so there’s no danger of burning as so regularly happens with incandescents. A 100-watt bulb placed in a socket designed for a 40-watt will burn the covering plastic shade in a few couple of| matter of} hours or less. Also, how many times have you singed your skin when touching an ordinary bulb? That doesn’t occur with LED bulbs.

While incandescents do a half decent job or providing a reasonable emulation of natural sunlight, LEDs are way better. Incandescents are somewhat yellow, LEDs are white and much nearer to the color temperature of natural daylight. And, unlike fluorescent bulbs, LEDs contain no mercury, which is unsafe if the bulb breaks.

Still LEDs have some flaws, apart from the higher cost. They don’t currently put out as much light per bulb as a single incandescent so it may require more than one for particular lighting applications.

Since LEDs are way more directional they don’t do well as exterior lighting. They will do better in reading lamps, recessed ceiling lamps and other such applications than as general ambient light. But where an enduring and/or always-on bulb is required they can be awfully inexpensive.

Get more on LED bulbs by visiting LED Bulbs Are The Modern Option

I asked this
http://uk.answers.yahoo.com/question/index;_ylt=AuDv47.lw6HUjpE1awWY8GwgBgx.?qid=20060826030940AAwAGde
and someone suggested LED bulbs, which I’ve not seen before for domestic use – I’ve only seen compact flourescent (energy savers) and ordinary incandescent bulbs. Anyone used the LED ones? are they good?

Which LED Bulbs and LED Grow Lights Are Right For My Indoor Plants?

LED refers to light emitting diodes, and they are the latest type of light bulb to make an impact on all types of lighting today. With regard to using LED lamps and LED grow lights with plants, there are many reasons why they are beneficial. They are small and lightweight, yet produce an amazing amount of light that is specifically usable by plants for photosynthesis. They run cool, eliminating the need for expensive cooling equipment, and they run on much less electricity than traditional HID, HPS grow lights or MH lights. This is why many gardeners are selecting LED grow lights, but knowing a bit about how the lights work will help you in selecting the correct LED bulbs for your indoor garden.

Plants need light from different parts of the light spectrum in terms of color temperature in order to grow well and thrive. Young seedlings need light that will help them to grow into sturdy, mature plants, and that type of light is blue spectrum. Once mature, plants can be induced to produce flowers and fruits by growing them under red and orange spectrum lights.

Knowing this, you can be quite selective in terms of the LED lamps that you choose. Many traditional bulbs offer only one part of the light spectrum, and if it is the wrong part of the spectrum for what your plants require, the plants will not thrive in an indoor setting. This can be alleviated with the use of LED bulbs.

There are red LED bulbs available. They produce a great deal of light, yet run on only one watt of electricity.

Green LED bulbs are useful in certain specific applications. Plants require a certain amount of darkness each day, in addition to light. Plants cannot make use of green light, but if you have work to do with your plants, by putting green LED lamps into ordinary light sockets, you can easily see to do what you need to without adding extra light that would disturb the plants period of needed darkness. Certain LED lamps are used in LED lighting units for a variety of purposes. Tiny one-watt LED bulbs can be selected according to the light spectrum they emit, and thus you can get a lighting unit that only offers light that plants can use.

The LED bulbs are also directional, and can be positioned in order to shine straight down, thus giving your plants the benefit. This is not possible with traditional bulbs, which rely on reflectors to direct the light.

By knowing all of these ideas, indoor gardeners can select the best LED lamps that will suit their plants and their gardening purposes well.