Current Regulation vs. PWM, what is the difference?

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s1mp13m4n
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Current Regulation vs. PWM, what is the difference?

I see folks on this forum talking about the non budget lights using current regulation and the budget lights using PWM.  What is this, what is the difference, which is better?

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Vectrex
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PWM is explained in our Wiki ... think like a very fast strobe...

s1mp13m4n
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Thanks for the help, that answers my question  Smile

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agenthex
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It's more simple/cheaper circuit w/ modern microcontrollers. You get worse battery life because emitters are less efficient at  high current (esp at the DD 4V drive that cheap lights use.

Reading this makes you smarter: http://lesswrong.com/