12 Volt LED light Bulbs (10-30vdc), G4 Tower side – back entry, 27 SMD DESCRIPTION 27 smd 12 Volt LED Bulb. Dimensions:OD .39″”Overall height 1.54″Pin Spacing approx. .16″ (4mm)Pin Length approx. .32″ (8.2 mm) Specifications:Power: 12-24 volt dc (10v-30v), 1.3 wattLumens: 143/136 lumens (*compare to 9 watts halogen) Colors:LED: warm white LED 3200k +/- 10% cool white LED 6500k +/- 8% 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 Lg4t27cw Lg4t27ww