BadRequest
- Oct 28, 2022
- 4
- Joined
- Oct 28, 2022
- Messages
- 4
I have this LED light bulb with built-in PIR sensor. It uses a BIS0001 chip which is common on PIR modules and I was able to extend the time on by swapping the 100K timing resistor R2 for a 910K (what I had on hand). I guess it's a long shot but I was wondering whether anyone reckons there could be a simple way to reduce the LED brightness as well? I tried several different resistors but 75R and above makes the bulb flicker rapidly.
The voltage across the LEDs is about 37 V and they are arranged in 12 series sets of parallel pairs (so 24 total with just over 3 V across each parallel pair). I'm not entirely certain what current is flowing but I think it's in excess of 200 mA. When I tried a 47 ohm resistor in series, the voltage across it was 10 V so I removed it again (it was only rated for 1 W).
Thanks.
The voltage across the LEDs is about 37 V and they are arranged in 12 series sets of parallel pairs (so 24 total with just over 3 V across each parallel pair). I'm not entirely certain what current is flowing but I think it's in excess of 200 mA. When I tried a 47 ohm resistor in series, the voltage across it was 10 V so I removed it again (it was only rated for 1 W).
Thanks.