I've been reading about dimmers here and thought I would try dimming my outdoor LED lights with one of the Chinese 12-24VDC 30A PWM dimmers found on eBay and elsewhere. The lights are running at 12VDC and consume 8.5 A. Dimmer was installed, but noticed right away that it was very warm. In an hour, almost too hot to touch. Should not have been, not at the current levels I noted. After several hours, it began to smoke and burn out. In the meantime, lights went to full brightness and probably then some. Needless to say, the only way I'll be using any more of these is with an in line fuse as well. Of course, the dimmer doesn't have one inside.
2 years ago