20Pcs JC Type G4 Halogen Bulbs, 12V 10 Watt, 280 Lumens, Soft Light, G4 Clear Bi-Pin Base. Pin Spacing: 0.16" (4mm), Bulb Diameter: 0.32" (8mm), Bulb Length: 1.19" (30mm). For use with stable AC/DC 12 volts only. Before using G4 halogen bulbs, confirm the voltage is 12V. These bulbs are not suitable for 120V applications such as oil burners or lava lamps. Use in higher voltage fixtures may cause the bulbs to explode. Easy to install and designed for long life up to 25,000 hours. Simply insert the bulb into the socket. Avoid touching the bulb with bare hands. Handle with care. High-quality eco-halogen technology delivers excellent lighting performance. 360-degree beam angle, CRI >99, uniform light output, 2700K warm white. Fully dimmable, mercury-free, no flicker, no noise, instant on. Ideal for a wide range of applications including landscape lighting, chandeliers, oven lights, accent lighting, under-cabinet puck lights, wall sconces, range hoods, closet lights, floor lamps, desk lamps, office spaces, restaurants, retail stores, caravans, boats, and yachts. Note: This is a low-voltage halogen bulb. Ensure compatibility with a suitable transformer. We are committed to providing high-quality standard light bulbs. if you have any questions.