Input:AC110-220V 50/60Hz Out put:DC 12V Protections: overload/ over voltage/ short circuit Electric current: 5A This Bulb is great for replacing your standard 12V Halogen . The LED Bulb will direct light more of spreading the light in any direction and the light seems clean and deliberate compared to halogen or other type bulb. It will last and are shock resistant. In case you drop the bulb it will likely still work. The bulb will not generate UV and heat so you will avoid from touching the bulb. The bulb therefore will not your lighting fixture or it. The bulb has a 60 degree spread (beam ), 7000K color temperature (cool white) and 440 Lumen light output. This bulb have 4 high individual LED pieces. The light bulb will unfortunately not work in all 12V power sources and you may have to replace the transformer/adaptor main unit if it has a problem with low load (it may work if you leave one halogen bulb to carry some load). The application is perfect , restaurants, shops, office, etc. Also available in color temperatures warm white 3200K. Note the bulb is slightly than a standard Halogen bulb. Material:Plastic+metal Contents:1 x Switching power supply transformer Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.