GRHazelton
Subscriber
I just bought two LED night lights, photocell controlled white light. For whatever reason I pulled one from the AC outlet in the dark while it was lit. To my surprise the glow GRADUALLY diminished, taking perhaps 5 seconds to completely disappear! Both of these night lights did the same thing. Another night light, blue, non-photocell controlled, doesn't do this. Would the photocell controller have any effect on this?
Has anyone else encountered this? I'd had the impression that LEDs pretty much were just on or off, with no "cool down." If this is common it could vitiate making a "cold light" enlarger source.
Has anyone else encountered this? I'd had the impression that LEDs pretty much were just on or off, with no "cool down." If this is common it could vitiate making a "cold light" enlarger source.