I have seen them on a tank and I found they look about the same as a iwasaki sytem with 3-4 VHO actinic IMO they realy dont worht it
the one I have seen have was operating on 220 50HZ so they come with an inverter to made 220 with 110 :shock: if my memory is good each transformer loose 20-30% electricity in heat so one transformer for the current an ballast for the bulb :x
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