AHsupply no 65w CF bulbs

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65w and 55w CF bulbs are basically the same (so I've been told). I can't explain the reason why, well enough though...maybe someone else can. I think it depends on the length of the bulb as to whether it is 65 or 55w but they are used in the same fixture. Sorry I couldn't be more help.
 
From what I've read ... 65 & 55's put out almost the same amount of light in tests, so it doesn't much matter which one you use (although you will pay a bit less in electricity with the 55W).

Also, modern electronic ballasts are load sensing and will fire up a varielty of bulbs so you can ususally interchange 55 & 65 in the same fixture (read the ratings on the ballast to be sure - as long as the total watts of you bulbs is less than the max rated and the ballast is auto load sensing electronic, it should work.).
 
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