While it's true residential application LED's have come a long way and they will save the consumer money. The problem I've seen with them, as well as CFL's, is poor power factor and harmonic distortion. Utilities do not normally charge residences for poor power factor, nor do residences have to comply with IEEE519. The last LED I tested had a power factor in the 60% range and horrible harmonic distortion. On the commercial side of LED, these two problems are being eliminated by compliance with LM-79 testing. Hopefully, the manufacturers will figure out how to do the same on residential fixtures.
As always, great information. I'm glad you guys are here!
While it's true residential application LED's have come a long way and they will save the consumer money. The problem I've seen with them, as well as CFL's, is poor power factor and harmonic distortion. Utilities do not normally charge residences for poor power factor, nor do residences have to comply with IEEE519. The last LED I tested had a power factor in the 60% range and horrible harmonic distortion. On the commercial side of LED, these two problems are being eliminated by compliance with LM-79 testing. Hopefully, the manufacturers will figure out how to do the same on residential fixtures.
As always, great information. I'm glad you guys are here!
Vic
Posted by Vic Hubbard on Apr 1, 2010 9:54am