500 Lumens Natural White T8 Tube 18″ LED Replacement. Wide Voltage Range 8-30 Volt DC. Applications include 12 or 24 VDC marine and recreational vehicles. 120 High Power 3528 SMD LEDs. Beam Pattern 120 degrees. Luminous flux 500 Lumens. 7.92 Watts. Color temp 4000-4500K Natural White. Turn to adjust the directional beam of light.