G8 Lighting Halogen Light Bulb T4 20W 120V Dimmable JCD Bi-Pin -10 Pack- Shorter 1-3-8" -1.38"- Length for Under Cabinet Puck Lights Kitchen Hood Landscape Lights Desk Lamps 2700K Warm White

Base, Shape and Dimensions Base: G8 2-Pin Bi-Pin with 8mm pin distance. Shape: T4 Tubular JCD. Diameter: 0.59 inches. Length: 1.38 inches (mini version). Please make sure the light bulb base matches what your light fixture has. A common confusion is with G4 2-Pin light bulbs because they look very similar in photos, but the G4 has a much smaller pin distance of 4mm instead of 8mm, Please verify your pin distance prior to order. Lighting Features Power: 20 Watts. Luminous Flux: 190 Lumens Voltage: 110V, 120V, 130V AC. Beam Angle: 360°. Material: Glass. Color Rendering Index (CRI): 100 for vivid and enhanced color. Instant On. No Mercury. Lifetime: 2,000 hours (1.8 years with average of 3 hours use per day) CE and RoHS certified. Working with Halogen Dimmers These halogen light bulbs are dimmable using the dimmers designed for incandescent & halogen light bulbs. All incandescent and halogen light bulbs are dimmable using traditional dimmers, as these dimmers simply adjusts the voltage level for dimming. Dimming using LED only dimmers will result in incompatibility, as LED dimmers work very differently. Please check the compatibility of your dimmer switch or light fixture prior to purchase.