buzz62
Well-Known Member
HI all, just got a new Mars Hydro TSW 2000 and removed the power supplies to keep them cooler as they seemed too hot on top of the light. I discovered that the reflector picks up induced voltage of 15 Volts AC, with no discernible amps, from the lights and that running a separate ground back to the power supply mounting plate fixed the problem. It didn't seem dangerous, just disconcerting as the top of the reflector felt like it was buzzing or vibrating really fast when I touched it lightly. From the factory its grounded by the power supply mount, but I would recommend to all to run a separate ground if you are separating the power supply units from the reflectors, especially if there is no apparent ground like on a DC unit like this.
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Ground wire attached to power supply ground plane