led is the future of lighting
by oaktownelectrical on 6/3/2017
•ENERGY COST
Based on an assumption of three hours of use per day at 11 cents per kilowatt-hour. For a 60-watt incandescent, it’s just over $7 per year. CFLs and LEDs both come in at about $1.50 per year.
•BULB LIFE
LEDs dim over time. They’re considered effectively dead when they produce no more than 70 percent of their original brightness. For LEDs, this lifespan is given in hours or years, the latter an estimate based on three hours of daily use.
