12 Volt LED light Bulbs (10-30vdc), G4 Tower side – back entry DESCRIPTION 18 smd 12 Volt LED Bulb. Dimensions:OD 0.75″ (19mm)Body height 1″ (25mm)Overall height 1.44″Pin Spacing approx. 0.16″ (4mm)Pin Length approx. 0.43″ (11 mm) Specifications:Power: 12-24 volt dc (10v-30v), 3.2 wattLumens: 182 lumens (*compare to 11 watts halogen) Colors:LED: cool white LED 6500k +/- 8%warm white LED 3200k +/- 10% Additional information: LED (light emitting diodes) have many advantages: Low power consumption – 12 Volt LED Bulbs use up to 5x less power than their equivalent halogen, Xenon and incandescent predecessors. Minimal Heat Dissipation – keeps cabins / rooms cooler. Shock Resistant – no filament or glass to break. Environmentally Green – no mercury (as in fluorescent bulbs). Available Models Lg4t18cw Lg4t18ww