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In article <[EMAIL PROTECTED]>, Marrow wrote: > I recently purchased a couple GE CFL bulbs, and noticed an interesting > phenomenon. When I first turn these bulbs on, they are much dimmer than > expected, but over the course of 30 to 60 seconds they become noticeably > brighter. Is it normal for flourescents to get brighter as they warm up? > I've never noticed this before with other flourescent lighting. yes, it's normal and mine all do it. you can measure it with a light meter. > > Also, does anyone make a CFL bulb which is the equivalent of a 75W > incandescent? The ones I've seen have all been 60W and 100W equivalents. > > M. > > there s/b, maybe not in the swirl shape, but none of these, imho, are more than 70-80% of the claimed lumen output. the manufacturers have some formulas that allow them to claim 4-5x the output per watt over incandescent, but the real figure is about 3x. --Loren
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