That's because there are still many electricians who are deservedly referred to as "mechanics". I apprenticed under a couple of them. I knew more about theory and control wiring than they did.I've always found this confusing myself, why are controls so difficult for electricans to get right.
Crouse Hinds is ready to market an LED for pertrochem(NEC500) locations that is the equivalent of a 175W MH in light output. Pretty impressive.Anyone installing LED yet? I just purchased 2 fixtures for a sign at a garage and excited to see how they will look.