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- Jul 5, 2019
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They don't really overdrive, the remaining wattage is lost in the form of heat within the M80. Just feel it.....The M80's over drive the 250 watt bulb to 335 if I recall from my Killawatt meter. With those I would change every 8 mos because I had so many frags they paid for themselves. Also the year is recommended if you are driving them at standard wattage with an electric ballast.