At 220 lumens, this is one of the brightest tower cluster LED bulbs available for marine use. It combines 18 surface mount (SMD) LEDs arrayed in 6 planes for 360° visibility. Proprietary PWM constant-current chipset results in high performance across the entire 10-30VDC range. Its 360° visibility makes it ideal for European style wall appliqués, sconces and table lamps which use the miniature screw base E14 bulb, widely used in Europe.