EXCELLENT PERFORMANCE: High brightness 300 lumen, 2800K warm white light, CRI100. Our 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, making illuminated areas appear vibrant and rich. HIGH QUALITY AND DURABLE: CE and RoHS compliant. These G4 halogen bulbs have a lifespan of over 3000 hours and can be switched on and off up to 15,000 times. Each bulb meets strict quality standards for flicker, glare, and color reproduction, helping to protect your eyes. 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 and indoor lighting fixtures. 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 installationsimply insert into the socket. Instant illumination with a 360 beam angle. Ensures wide and even light distribution. SATISFACTION GUARANTEED: Backed by a 90-day seller warranty. CE and RoHS compliant. If you experience any issues with the G4 dimmable warm white bulb, please . Our customer support team will assist you within 24 hours. Purchase the JC G4 12V 20W halogen bulb with confidence.