Dave_H
Flashlight Enthusiast
I picked up some Ecosmart chandelier bulbs at HD, 4.5W/470 lumens which is >100 lumens/W. Created
a casualty with one, dropped it and the glass shell broke, but the internals were OK and still worked, did a few tests.
It has four filaments, two parallel plus two series. Voltage across the lot was about 150v dc, so each
filament must have about two dozen small LEDs (~3v each). Due to brightness, could not see individual LEDs, not
dimmable but I will try looking through two or three sun-glass lenses or welder's goggles.
Ikea now has some 2-4W chandelier bulbs with clear plastic shell; can see three metal strips with LED strip on each. Interesting
as one end is unconnected at the top, wiring is only on the other end.
Also, a newer Philips 7W 800 lumen A19 bulb mentioned earlier has a clear part of bulb near the base, can see some filaments
inside.
Looks like there's a good future for this technology.
Dave
a casualty with one, dropped it and the glass shell broke, but the internals were OK and still worked, did a few tests.
It has four filaments, two parallel plus two series. Voltage across the lot was about 150v dc, so each
filament must have about two dozen small LEDs (~3v each). Due to brightness, could not see individual LEDs, not
dimmable but I will try looking through two or three sun-glass lenses or welder's goggles.
Ikea now has some 2-4W chandelier bulbs with clear plastic shell; can see three metal strips with LED strip on each. Interesting
as one end is unconnected at the top, wiring is only on the other end.
Also, a newer Philips 7W 800 lumen A19 bulb mentioned earlier has a clear part of bulb near the base, can see some filaments
inside.
Looks like there's a good future for this technology.
Dave
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