Design Challenge:

Design a retrofit LED lamp that operates from 10VDC to 15VDC with no change in light output, providing consistent illumination for the interior cabin of a commercial 48' yacht.

DDP's Solution:

A bi-polar double contact bayonet-based lamp with one ½ -Watt warm white lambertian emitter and a constant current driver to increase light output incrementally between 8VDC and 15VDC.

Design Challenge:

Match the light output and horizontal visibility of a CM895 incandescent bulb behind an existing tempered-glass lens on the side of a light rail vehicle.

DDP's Solution:

A single-source 1-Watt side-emitter with custom optic, operating from 23-42.5VDC. Additional integrated circuitry shields the LED lamp from EMI and transient circuit noise.