-Size: 9mmx35mm, -12 volts AC/DC -Non-dimmable, these bulbs will flicker if you use a dimmer or unstable 12 volts. -The LED bulb is 1.5 Watts and is equivalent to a 10 Watt T3 Halogen bulb in White 6000K. -G4 base can be easily replaced with regular halogen bulbs. -There are a variety of applications for G4 LED light bulbs, including landscape lighting, RV, courtyard, garden, puck lights, under cabinet lighting, post lights, and recessed lighting. - Reduce electricity bills by 85% by replacing the 10W halogen bulb with 1.5W LED. -Contains no lead or mercury; does not emit UV or IR radiation