Well Weezard, you are right once again ! The difference in quality LED's from cheap ones surely makes a difference. 2 of the 4 - 600 watt LED's I had burnt up right after I asked you about the differences. Took them apart & both have the same problem. The 4 wires that connect to the power switch completely melted the back side of the switches. Couldn't believe the wiring they used. So thin it looked like it came from an old time transistor radio. I'll buy a good light after I move. Taking everything down now anyway & packing it up since it's not being used. Probably down till around April or May since it takes a while to get situated after a move. Anyways, the moral of my story is …. "Don't buy cheap lights …. you might burn your house down."