【EXCELLENT PERFORMANCE】: High brightness 300 lumen, 2800K bright warm white, CRI100. Our G4 bulb 12V provides warm lighting conditions similar to sunlight. With a CRI up to 100, it accurately restores the true color of objects, making illuminated areas 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 reproduction, helping to protect your eyes. 【DIMMABLE 100% TO 10%】: G4 halogen bulb 20W is compatible with most dimmers. Adjust brightness from 10% to 100% to suit different settings and moods. Ideal for table lamps and ambient home lighting, creating a comfortable and pleasant atmosphere. 【EASY INSTALLATION】: Diameter: 0.31 in (0.8 cm), Length: 1.18 in (3.0 cm), Base: G4 bi-pin (4 mm or 0.16 in apart), Pin diameter: 0.7 mm. Standard G4 base ensures easy and secure installation. Simply insert into the socket. Instant on with a 360° beam angle. Offers reliable compatibility with existing fixtures. 【SATISFACTION GUARANTEED】: Backed by a 90-day seller warranty. CE and RoHS compliant. If any issues arise with the G4 dimmable warm white bulb, support is available for resolution within 24 hours.