This bulb is manufactured specifically to replace the 25W incandescent bulbs used in 12V and 24V Aqua Signal and Hella tri-Color navigation fixtures mounted atop a masthead which use a BAY15d bayonet bulb.
It utilizes three different color LEDs (Red/Green/White), that are indexed into sectors such that the colors align with the appropriate lens colors on your tri-color fixture. Please choose your fixture type from the dropdown box when ordering, because the Hella and Aqua-Signal have different alignments. For fixture identification purposes, please note that the black caps on the Aqua Signal housing are perfectly round, while the Hella's caps are also round, but have squared-off corners.
Because a colored lens transmits a like colored light at nearly 100% efficiency, a tri-colored LED replacement offers the highest output through the red/green lenses, far exceeding the transmission possible with white full-spectrum light. See our white paper on the subject here. The best part is the nearly 85% reduction in current while offering the greater light output. With this LED replacement the bulb could last as long as 30,000 hours as well.
Of course, the red/green sectors must align with the sector angle of the lamp fixture itself. We do this by indexing the sector zones to the tabs on the indexed BAY15d base used on Aqua Signal, and Hella fixtures.
This bulb has 50 high-output LEDs sealed within a machined aluminum housing, which is double-sealed to meet IP66 ingress protection (waterproof). The aluminum shell serves to dissipate heat, and provide protection. Internal the the housing is our constant-current driver, which protects the LEDs, regardless of input voltage from 10-30VDC. This makes it immune to most voltage drops typical at the masthead due to the long run of wiring or corrosion.
- Size:32mm x 50mm
- LED QTY: 50 pcs
- Power: 3.2 W
- Amperage:0.025 Amps
- Input Voltage: DC10-30V (12V and 24V)