The perfect Gift for the sailor in your life
$ 21.00 USD

Dusk to Dawn Anchor Bulb

This is our automatic photocell daylight sensing replacement LED bulb, which automatically comes on at dusk, and turns off again at dawn. It is a drop in replacement for your existing Aqua Signal, Hella, Perko or other anchor light or tri-color housing with a BAY15D bayonet base (double-contact, offset pins) socket.

No extra sensors, wires, or switches needed. We have built all of the daylight-sensing electronics right into the bulb, so it is just a simple replacement.

The bulb still features the constant-current electronics, and 15 of the newest multi-emitter LEDs, so its output far exceeds all requirements for all-around anchor lighting for boats up to 20M (65 ft).

Perfect for boats on a mooring, or for cruisers constantly on the hook. Never forget to turn off your anchor light again!

Fits Aqua Signal Series 40, 41, 42,& 50 as well as Hella 2984 and Perko 200 Fixtures.


  • Voltage: 8VDC – 30VDC Constant Current
  • Wattage: 3W
  • Amperage: 0.25A at 12V
  • Lumens: 240
  • Dimensions: Dia. 28mm x 40mm (+socket)

2 Year Warranty