What kind of light is better for recharging a watch battery via solar technology? Incandescent vs fluorescent?

Question by Mike: What kind of light is better for recharging a watch battery via solar technology? Incandescent vs fluorescent?
I want to know if incandescent or if fluorescent will recharge my battery in my watch via solar technology? What is the main difference between incandescent and fluorescent when referring directly to recharging batteries via solar panels? Does one emit more photons than the other? Any assistance is greatly appreciated.

Best answer:

Answer by goober
fluorescent lights generally have higher energy photons. the light starts out with a strong UV component that lights up the coating inside the tube. There is still a fair amount of violet and green light from the Hg in the tube. Incandescent bulbs have more of their light in the infra red to yellow part of the spectrum.

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2 Responses to “What kind of light is better for recharging a watch battery via solar technology? Incandescent vs fluorescent?”

  1. Fluorescent light would have a better chance of recharging the battery due to the UV component of the light output. However this sort of defeats the purpose of using the solar panel. The input power to the light would far exceed the power required to recharge the battery.

  2. There is really no need to run a light for the sake of charging a watch battery. You will be expending farm more energy. Just wear the watch and it will charge.

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