High efficiency R7S halogen bulbs, 300W 3000 lumens. Voltage: 230V. Length: 4.65" (118mm). Direct replacement for all T3 118mm R7S double-ended sockets. Average lifespan of 2500 hours, reducing the frequency of bulb replacements. (Please measure your lamp base before purchasing. For 118mm base only, not compatible with 78mm.) Excellent performance with high-quality eco-halogen technology. 360-degree wide beam angle. 118mm 300-watt J-type double-ended halogen bulb designed for R7S base. Clear glass construction provides 2700K warm white illumination and a CRI of 99, delivering vibrant color rendering under natural-looking light. Dimmable R7S halogen bulb for 118mm sockets. Compatible with dimmer switches to adjust brightness. Flicker-free operation helps reduce eye strain. Free of dangerous emissions, UV radiation, and IR radiation. Wide application: Suitable for home, shop, and office spotlights, task lighting, security lighting, showrooms, stage and studio lighting, floor lamps, and landscape lighting.