EcoRenovator - View Single Post - The Facts About Energy Efficient Light Bulbs

Ryland · 10-24-10, 05:27 PM

I was at Home Depot today looking at their LED lights and noticed that 57 Lumins per watt was about the best of anything that they sold for LEDs and it was two of their 850 lumin lights at around 16 watts each that seemed like the best deal at 53 lumins per watt.
Then I remembered that the last time I hooked a CFL up to a Kill-a-watt meter it drew more power then it was labeled as using, then I noticed that not only are CFL's rated for watts but also amps at 120 volts, my 7 watt CFL is also labeled as a .081 amp at 120 volts or 9.72 watts and that is closer to what it really draws.
LED's on the other hand tend to draw what they are labeled within 5% or so.

10-24-10, 05:27 PM	#13
Ryland Master EcoRenovator Join Date: Mar 2009 Location: Western Wisconsin. Posts: 913 Thanks: 127 Thanked 82 Times in 71 Posts	I was at Home Depot today looking at their LED lights and noticed that 57 Lumins per watt was about the best of anything that they sold for LEDs and it was two of their 850 lumin lights at around 16 watts each that seemed like the best deal at 53 lumins per watt. Then I remembered that the last time I hooked a CFL up to a Kill-a-watt meter it drew more power then it was labeled as using, then I noticed that not only are CFL's rated for watts but also amps at 120 volts, my 7 watt CFL is also labeled as a .081 amp at 120 volts or 9.72 watts and that is closer to what it really draws. LED's on the other hand tend to draw what they are labeled within 5% or so.