First of all, I am trying to learn basics of LED tech strictly as a challenge, so I'm starting with basics. I've gotten several LED devices. First one is non working LED spotlight. . Going to try to fix it. Checked power supply. 110 in, measured dc v out of power supply is 167. Yes, 167. Is this normal? It's a 40w LED chip that power supply is supposed to be driving. Is output supposed to be dc? Have checked LED chip and it seems to be bad using method of testing on YouTube. As y'all can see, I'm really ignorant on this subject, but I learn by doing. Any info is appreciated.