How Long Does an LED Last?
The life of an LED is dependent on the engineering of the product it is in and the environment in which it is meant to operate. The exact same LED chip can last 500 hours in a poorly-designed product and over 50,000 hours in a well-designed product. The key factor is how quickly the heat-sync can get the heat away from the LED. An LED is typically considered “dead” at 70% of initial light output. A quality product that offers 90 foot-candles of illumination will still provide 60+ foot-candles 20-25 years from now (an 8-10 hour/day office environment).
How much electricity can I save?
It depends on what equipment you’re using now. Expect to use as much as 80% less electricity compared to incandescent bulbs, or up to 50% savings if replacing fluorescent tubes.
But isn’t lighting with LED’s expensive?
It is more expensive upfront than traditional lighting solutions, at least in terms of up-front costs. The difference is that you recover the expense through more efficient operation, and then continue saving energy costs for years and years. There are other advantages as well, like always having brighter light to work under, and not having an electrician continuously change your bulbs.
What is “Color temperature”?
Both LED and fluorescent lights are available in various colors. Older fluorescent lamps are typically sold as “warm white” or “cool white”. Today these colors are usually expressed numerically, “warm white” is about 2700 K and “cool white” is about 4000K. Incandescent light bulbs are typically a warm 2500K.
Are LEDs dimmable?
LEDs are the only bulbs available today that are able to take advantage of the full dimming range, from 1% all the way to 100%. Any LED bulb can easily be made dimmable using an electronic dimming switch that may already be installed in your home or landscape.