Bi-Pin "Third Degree Burn" Halogen Bulbs LED Replacements for Reading Lights with G4 bulbs. Description: Specially designed to replace most "third degree burn" bi-pin halogen bulbs used in many reading lights. These US made high-flux LED bulbs produce a warm white light and are fabricated from the highest quality components to assure long life and trouble-free functioning. Their incredibly low power draw (1W or 3W) makes them the perfect way to reduce energy consumption. High-flux LEDs, the latest LED technology, out-perform cluster LEDs in all respects. Product Features: 1W equivalent to a 30W incandescent beam. 3W equivalent to a 60W incandescent beam. 12VDC or 12VAC, for your yacht and your yard. Works on most low voltage outdoor lighting systems. Spot beam, best for directional light fixtures, bright enough to read a book. Long service life. Not hot, warm to the touch. Shockproof, ultra-rugged with no filament to burn out or break. UV, lead, and mercury-free. Not recommended for use in fixtures with colored lenses. Specifications: Input Voltage: 11-15 VDC (non-polarized), 12VAC Power Draw: 1W or 3W Color Temperature: ~3000 to 3800 K Shell Material: Die cast aluminum Mechanical Connection: Bi-pin Heat Dissipation: Space is required to dissipate 1W or 3W of heat generated