Thought this looked cool even though I doubt I'll ever be diving deeper than I need to in the hot tub.
Jim
I thought it was a slick idea as well, pardon the pun. Did you notice the instantaneous brightness of each light followed by a somewhat less intense level of lighting with each light he tried? I've never noticed that with an LED light before.
Jay
Jay Hanig wrote in news:BKmko.20814$ snipped-for-privacy@newsfe14.iad:
this LED light is curious;it has all 9 LEDs in parallel,and no current- limiting resistor or other circuit that I could find. It seems to rely on the internal battery impedance to regulate LED current. So,battery type and charge level will be the difference in brightness between different flashlights. I note they are supplied with carbon-zinc batteries,not alkalines.
I also noticed that Bell uses the same LED assembly and battery holder in one of their bicycle headlights,with a different outside housing.
I believe the change in brightness is due to the camera automatically adjusting the brightness for brighter conditions.
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