1. 【EXCELLENT PERFORMANCE】: High brightness 300 lumen, 2800K bright warm white, CRI100. This G4 bulb 12v provides warm lighting conditions similar to sunlight. With a CRI of up to 100, it can restore the real color of objects, making the areas illuminated by the light look more colorful. 2. 【DURABLE】: CE and RoHS Compliant. The lifespan of these halogen G4 12v 20w bulbs exceeds 3000 hours, and they can be switched on and off up to 15000 times. These G4 light bulbs meet strict test standards, including flicker, glare, and color reproduction, which help protect your eyes. 3. 【G4 DIMMABLE 100%-10%】: G4 halogen bulb 20w, compatible with most dimmers. Control the brightness of your table lamps or home lighting with the ability to dim from 10% to 100% lighting output. Adjust this G4 capsule bulb according to your mood and enjoy a pleasant atmosphere every time. 4. 【EASY INSTALLATION】: Diameter: 0.31” (0.8cm), Length: 1.18” (3.0cm), Base: G4 bi pin (4mm or 0.16” apart), 0.7mm Diameter (updated). This G4 20w 12v bulb features a standard G4 bi pin base, allowing for easy and quick installation with good compatibility. Simply insert this G4 halogen light bulb into the empty sockets. It turns on instantly with a 360° beam angle. 5. 【CUSTOMER FOCUS】: CE and RoHS Compliant. If there are any problems with the G4 dimmable warm white bulb, please feel free to contact us at any time. Our after-sales team will address the issue within 24 hours. Purchase this JC G4 12v 20w halogen bulb with confidence!