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 spotlight. The LED Bulb will direct light more accurate instead of spreading the light in any direction and the light seems amazing clean and deliberate compared to halogen or other traditional type bulb. It will last five times longer 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 melt your lighting fixture or discolor it. The bulb has a 60 degree spread (beam angle), 7000K color temperature (cool white) and 440 Lumen light output. This bulb have 4 high powered 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 bulbs application is perfect for home, restaurants, shops, office, etc. Also available in color temperatures warm white 3200K. Note that the bulb is slightly taller than a standard Halogen bulb. Material:Plastic+metal Package Contents:1 x Switching power supply transformer Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.