The sun is much more effective. it all so covers the perfect natural light spectrum.
Tomthehippie Reviewed by Tomthehippie on . Using sunlight & CFLs I was wondering how sunlight compared to CFLs. I have searched the Internet (and various forums) to try to find out how many lumens natural sun is compared to CFLs. I found this on Wikipedia: "Direct sunlight gives about 93 lumens of illumination per watt of electromagnetic power, including infrared, visible, and ultra-violet. This compares with the best fluorescent lights." It seems to me like the sun puts out 93 lumens a watt, but how many watts is the sun lol, does anyone understand Rating: 5