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Re: [Phys-l] Interesting LED Light Effect- Reality Check Request



Don't have winters here in Salinas -- my refrigerator lite does fine to illustrate the Haar effect.

bc: Now that his outdoor motion detected lites are LEDs, he's 100 % LED'd and CFL'd.

p.s. except for physics demos, of course



On 2011, Jun 24, , at 08:31, Roger Haar wrote:

Hi,
I think with CFL's some of the warm up is just getting the
mercury vaporized. Warm-up, outside, during the winter can
take more than a minute