Base and Voltage: This 12v led bulb is standard G4 led bulb, 12 volt AC or DC, its a low voltage g4 bulb. Please note: It cannot be directly connected to household power, you'd need a transformer to reduce the main voltage down to 12 volts Size and Compatibility: The size of this G4 LED bulb 12V is 12.5mmx37mm (0.49inchx1.457inch). Please check the fixture size before purchase of the led bulbs. This led g4 light bulbs is not dimmable. Do not use it with a dimmer switch as it may cause noise or flicker Lighting Characteristics: This G4 LED bulbs is 360-degree beam angle, providing all-directional lighting with no blind angle. You have five color temperature options to select from: Soft Warm White 2700K, Warm White 3000K, Natural White 4000K, Daylight White 5000K, Cool Daylight White 6000K Energy Saving and Color Display: These 12 volt led lights power is 2.5W, equivalent 20W 25W 30W t3 halogen light bulbs, replace t3 led bulb, saving 95% on energy of lighting. The color rendering index is over 85, which can be a good display of color authenticity Application: Fit for various places such as home, living room, bedroom, restaurant, coffee, theme bar, hotel. Perfect for use in chandelier, crystal lamp, closet lights, ceiling lights, table lights, under cabinet light bulbs , recessed light and landscape light bulbs etc This is Standard G4 LED bulb, 12v led bulb, can be easily installed to replace ordinary G4 halogen bulbs, they equivalent 20W 25W 30W t3 led bulb, They're not dimmable, can't be used in dimmers ,otherwise there will be noise. This g4 12 volt led lights is low voltage light bulbs, AC DC 12V, With 20x 2835SMD chips, weigh 3.3g, size 12.5mm x 37mm (0.49inch*1.457inch) , Please check your fixture size before buying. Crafted from transparent silica gel, our led bulbs provide exceptional heat dissipation and a transparent cover for added safety. With 2.5W power g4 led replacement bulbs are very energy-efficient, significantly reducing your electricity bills. This 12v led light boast a lifespan of over 20,000 hours, 245-280 lm of light, have a 360-degree beam angle with no blind spots, and available in soft warm white 2700K, Natural white 4000K and daylight white 6000K. This g4 12v led bulb come with CE-EMC, RoHs, and FCC certifications. This g4 light bulb perfect for various settings such as home, living room, bedroom, restaurant, coffee shop, theme bar, hotel, and more. Ideal for use in crystal lamps, Chandelier, closet lights, under-cabinet lights, ceiling lights, table lights, display, rv light bulbs, camper light bulbs, under cabinet light bulbs, and landscape lighting, low voltage landscape light bulbs, g4 2 pin light bulbs replacement for your home. The package includes 10 pack g4 bulbs 12v