PhotonWrangler
Flashaholic
Just spotted these new LED bulbs at the "orange" DIY store. They have a built-in photocell. They're 2700k, 800 lumen 60w equivalent and they're rated for totally enclosed fixtures like post lights and patio/security lights.
We have a patio light fixture with a dusk-to-dawn photocell and a Cree 60W equivalent bulb. The fixture flickers like mad at dusk and dawn. It also generates lots of RFI when this happens. We've tried reorienting the photocell and shielding it from the bulb with no luck. Some of the bulb's light reaches the photocell and causes it to oscillate for awhile each day at dusk and dawn. I'm hoping these new bulbs with integrated photocells will do the trick.
I looked at the red photocell lens closely with a flashlight to try to determine whether the sensor is cadmium-sulfide (slower response) or silicon but I couldn't tell. The photocell circuit appears to have a little bit of delay built-in, confirmed by aiming my flashlight at it while it's on, so hopefully it won't flicker/oscillate.
They're currently 8 bucks in the store, normally 9 bucks.
**Update** Apparently these have been around since at lease last November, although I haven't noticed them until today.
We have a patio light fixture with a dusk-to-dawn photocell and a Cree 60W equivalent bulb. The fixture flickers like mad at dusk and dawn. It also generates lots of RFI when this happens. We've tried reorienting the photocell and shielding it from the bulb with no luck. Some of the bulb's light reaches the photocell and causes it to oscillate for awhile each day at dusk and dawn. I'm hoping these new bulbs with integrated photocells will do the trick.
I looked at the red photocell lens closely with a flashlight to try to determine whether the sensor is cadmium-sulfide (slower response) or silicon but I couldn't tell. The photocell circuit appears to have a little bit of delay built-in, confirmed by aiming my flashlight at it while it's on, so hopefully it won't flicker/oscillate.
They're currently 8 bucks in the store, normally 9 bucks.
**Update** Apparently these have been around since at lease last November, although I haven't noticed them until today.
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