dwarfganja
Member
hope this doesnt cause any confusion, but philips makes the true pulse start cmh lamps up to 250 watts and all will work with a suitable M102/M142 ballasts whether coil/core or electronic. dwarfganja is refering to the cmh RETRO lamps that are designed for coil/core hps ballasts only. Those come in 250w and 400w.
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