Standard G4 bi-pin base, perfect replacement for halogen G4. Long lifespan up to 30,000 hours, saving maintenance costs for frequent bulb changes. Low power consumption, 3W LED can replace 30W halogen G4 capsule bulbs, saving up to 85% of your electricity bill. Worry-free - no flicker, no radiation, standard G4 base can easily replace ordinary G4 halogen bulbs. G4 LED bulbs are perfect for under-sink lighting, ceiling lights, pendant lights, chandeliers, under-cabinet lighting, accent lighting, puck lights, desk/table lamps, cabinet lighting, display and landscape lighting, etc. Product name: G4 -2835-20LED Dimmable Lamp holder type: G4 Voltage: AC / DC12V-24V Power: 3W Brightness: 360 degrees Number of LEDs: 20LED*2835SMD Energy saving: 85% Lifespan: 30000 hours Color temperature: Cool white (6000-6500K) Color: AS SHOWN Material: Silicone Size: 37 x 13mm Package contents: 10 x G4 bulb Only the above package content, other products are not included. 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 +/- 1-3 cm.