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Old 06-16-2005, 08:34 AM
NickN NickN is offline
LawnSite Bronze Member
 
Join Date: Aug 2003
Location: Alabama
Posts: 1,010
" Why will a larger than necessary transformer reduce the life of the bulbs?......( a 500 watt transformer running only twenty 7 watt bulbs)"
Too much power,just like a 500 watt amplifier will eventually blow a 10 watt speaker.The bulb is rated(or made) to withstand a certain amount of voltage,current,and power.If any of these is too high,it will reduce the life of the bulb,because the bulb wasn't designed to withstand the load.
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