12 V DC LED bulb
A60 E27 · 9 W · 12 V DC · either polarity

Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Lessons and builds that use it
- 12 V low-voltage battery cutoff (build)
- 555 delay-off timer with relay (build)
- PWM fan or LED dimmer (build)
- Motion-activated light (build)
- 200 Ah power station from four 3.2 V prismatic LiFePO4 cells: 4S BMS, 2 × 12 V, 3 × USB, mains charger (build)
- 200 Ah power station on a 12.8 V LiFePO4 battery: 2 × 12 V, 3 × USB, mains charger (build)
- 10. Relay: switching a real lamp (build)
- 11. PIR sensor: only when someone is there (build)
- 12. 555 timer: stay on after they pass (build)
- 13. Buzzer: an alarm mode (build)
- 14. Solar: the light runs off-grid (build)