Davis Instruments Marine Navigation Lights
- Davis Instruments®Mega-Light™ Masthead Light (3310)Mega-Light™ Masthead Light by Davis Instruments®. Mega-Light Masthead consumes just 0.110 amps (approximately 1/10th amp). It features a light sensor that automatically switches on at dusk and off at dawn. The dual-function Fresnel...Automatic switching - on at dusk/off at dawnTwo easy-change bulbs for super low current draw (0.11 amp) or extra brightness (.320 amp)$45.69