LED Light Bulbs


About LED Light Bulbs

There are many choices on the market for lights. We shall compare some of them. LED Light Bulbs have several advantages. One is that LED Light Bulbs are quite durable, and among other things will resist damage caused by turning the lights on and off. While this shortens the lifespan of incandescent bulbs the LEDs will survive. LED bulbs handle cold weather very well, but are damaged by heat. The equivalent of a 60 watt LED light bulb should produce almost 2000 lumens of light. LEDs do produce directional light, and even LED lights that are clusters of LED Light Bulbs are best suited to putting light on specific locations, rather that lighting an entire room or area.

In comparison to LED Light Bulbs, incandescent bulbs, including halogen bulbs, have short life spans, 1000 hours for the average incandescent, 2000 for the average halogen bulb, and produce a fair amount of heat. They do not respond well to extremes in temperature and turning them on and off shortens the lifespan considerably. A normal incandescent bulb turns 5% of the power it consumes into light. Halogen bulbs turn 9% of the power they consume into light. Despite this higher efficiency, halogen bulbs do get very hot and some areas ban them or require them to have additional fire prevention features such as a grill to keep flammables away from the bulb. Incandescent bulbs come in a wide variety, and there is an incandescent bulb for most needs. They are well understood and easily available. A typical 60 watt incandescent bulb produces 850 lumens of light. A 50 watt halogen bulb should produce around 1250 lumens of light.

Fluorescent bulbs, including the compact fluorescents, can produce a low hum and have a flicker, normally faster than the human eye can follow, but which some people can detect and that can cause stress or unhappiness. A fluorescent bulb turns around 10% of the power it consumes into light, though with a wide spread from 7-15% normal. Fluorescent bulbs are mainly used for commercial and industrial uses, for area lighting that remains on much of the time. The newer CFL bulbs are intended to replace incandescent bulbs, and behave much like the normal fluorescent light, while having the flexibility of incandescent lights of fitting into most home fixtures. A 14 watt compact fluorescent light produces around 900 lumens of light. Fluorescent lights typically take up to three minutes to achieve normal light and color values, and some will degrade over time, with up to a quarter dropping to half effectiveness over a couple of years.

It is difficult to directly compare the costs of LED Light Bulbs to the other bulbs, since standard fluorescents don’t directly compete with standard incandescent lights, you should expect to purchase around ten incandescent lights for each fluorescent. You can expect to purchase from forty to over a hundred incandescent lights for each LED light bulb. When considering the total cost of those bulbs, they are all relatively comparable for lifetime hardware costs. The energy savings makes the incandescent bulbs the clear losers in terms of lifetime costs, which may be made up by the advantages of availability and flexibility for those lights. Currently the fluorescents and LEDs are comparable over lifetime costs, but the fluorescent lights are a more mature technology with fifty years of service in area lighting, and thus LED light bulbs are improving at much higher rates currently.

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