【EXCELLENT PERFORMANCE】: High brightness 300 lumen, 2800K warm white light, CRI100. This G4 bulb 12V provides warm lighting similar to natural sunlight. With a color rendering index up to 100, it accurately reveals the true colors of objects, enhancing visual richness in illuminated areas. 【HIGH QUALITY AND DURABLE】: CE and RoHS compliant. These halogen G4 12V 20W bulbs have a lifespan of over 3000 hours and can be switched on and off up to 15000 times. Each G4 light bulb meets strict testing standards for flicker, glare, and color reproduction, helping to protect your eyes. 【DIMMABLE 100% TO 10%】: 20W G4 halogen bulb compatible with most dimmer switches. Adjust brightness from 10% to 100% to suit different settings and moods. Ideal for use in table lamps or ambient home lighting. 【EASY INSTALLATION】: Diameter: 0.31” (0.8cm), Length: 1.18” (3.0cm), Base: G4 bi-pin (4mm apart), 0.7mm pin diameter. Standard G4 base ensures easy installation and wide compatibility. Simply insert into the socket. Instant on with a 360° beam angle. 【SATISFACTION GUARANTEED】: 90-day seller warranty. CE and RoHS compliant. If you experience any issues, please reach out for prompt support from our professional service team.