Should I replace all bulbs?

NJ Devils Fan

#1 Devils fan
Oct 28, 2002
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Yonkers, NY
members.tripod.com
One of the bulbs on my custom SeaLife moonlight fixture went out. There are 4x 65watt square pin bulbs in there. Should I cough up about $120 on big al's and buy 4 new bulbs, or just go to my LFS and try to exchange a 50/50 bulb I have that came with the fixture?
 
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