【EXCELLENT PERFORMANCE】: High brightness 300 lumen, 2800K bright warm white, CRI100. Our G4 bulb 12V provides warm lighting conditions similar to sunlight. A CRI up to 100 ensures accurate color reproduction, making illuminated surfaces appear vibrant and natural. 【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 15,000 times. Each G4 light bulb meets strict testing standards for flicker, glare, and color accuracy to help protect your eyes. 【G4 DIMMABLE 100%-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 broad compatibility. Simply insert into the socket. Instant on with a 360° beam angle. 【SATISFACTION GUARANTEED】: 90-day warranty. CE and RoHS compliant. If you experience any issues, please reach out for prompt support from our professional service team.