Energy saving and high efficiency: 20W, 12V, 380 lumens, warm white 2800K, 360 beam angle, no strobe and uniform light to protect eyes Standard dimensions: diameter: 0.31 " (8 mm), Length: 1.18" (30 mm), Base: G4 Dimmable: This G4 halogen bulb is dimmable from 0% to 100%, allowing you to adjust the brightness according to your needs. It starts immediately without delay Long Life: The lamp life can be up to 3,000 hours, reducing the pollution caused by frequent lamp replacement G4 20W halogen bulbs G4 bulb information Easy to install S easily installs in various g4 base fixtures. Lumen: 380LM Power: 20W Input Voltage: AC/DC 12V Beam Angle: 360 degree Base: G4 Bi-Pin Base Lifespan: 3000 hours Color Temperature: 2800K Warm White g4 G4 Halogen Bulbs G4 Halogen Bulbs G4 Base Crystal Clear Bulb, 360 Beam Base: G4 2 Pin with 0.16" (4mm) Pin Distance Shape: T3 Tubular JC Pin Width: 0.16" (4mm) Beam Angle: 360 Lifespan: 3000 hours Instant on, no flickering, CRI>99 (color rendering index) dimmable, makes you see colors as they are meant to be seen. G4 bulb, no warm-up time, instant on at full brightness. High color rendering 2800K warm white light, like soft light, enjoy pleasant atmosphere. eliminates eye strain caused by conventional fluorescent light, effectively protecting your eyesight.