A CFL usually has about 7,000 on-off cycles in it. It’s up to you how you use them. Some motion sensor and photo cell fixtures can be particularly hard on CFLs due to their repeated on-off cycling.
First, studies have proven what consumers have been discovering. CFL’s rarely meet their rated life in real world applications. Why? Well they may have been used in the wrong application. But they also depend on being turned on continuously or at least for 4 hours at a time to meet their rated life. If they are on for only 1 hour you get a 20% to 50% reduction in lamp life. If the CFL is used with 5 to 30 minute use cycles like most incandescents, the life is reduced 70% to 85%. That means your 6,000 hour bulb is now lasting 900 hours, less than many incandescent bulbs.read more collapse
As I've mentioned elsewhere, when I realized this STUPID law was getting down to the wire, I purchased enough incandescent bulbs to last me for 30 years (or more). Nearly all are 60 watt, with some 150W and some three way bulbs. They were some of the last made at the Ohio GE plant, which made me feel sad to see.
Incandescent bulbs put out a different kind of light from fluorescent. All other considerations aside, including bulb life, if you are afflicted at all with Seasonal Affective Disorder, you will discover quickly that fluorescent bulbs do not help with this. It's the wrong color light, and the wrong wavelengths.
I'm hoping that someone sees the error of their ways before every single plant that made these is completely disassembled. There will ALWAYS be a market for incandescent, but you will discover that (for those that want them) they can only be purchased from Mexico, or China, or...
It's a stupid law.read more collapse
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