A. High efficiency R7S halogen bulbs 80W 800 Lumens. Voltage: 230V. Length: 3.07" (78mm). Direct replacement for all T3 78mm R7S double ended sockets. Lasts an average lifespan of 2500 hours, reduces the frequency of changing R7S halogen bulbs. (Please measure the size of your lamp base beforehand when purchasing, ONLY for 78MM base, NOT 118MM) B. Excellent performance eco-halogen. 360 wide beam angle. 78mm 80 watt J type double ended halogen bulb suitable for R7s base type. This is a clear glass that provides 2700K warm white (amber) lighting with all suitable lights and provides a CRI 99 which allows us to see the color vibrancy of objects under this light. Sometimes it would be hot due to the characteristics of the halogen bulb. C. Dimmable R7S halogen bulbs for Eye Protection. 78mm dimmable R7S J78 halogen rod, which can adjust the brightness of the light via a dimmer. No flicker, protect your eyes. No hazardous emissions, no UV or IR radiation. (Attention, the 80W r7s floodlight bulb would not be as bright as the same power floodlight when held at a long distance) D. Wide Application R7s Halogen Rods. R7S 78mm T3 halogen bulb for home, shop and office spotlights, spotlights, task and security lighting, showroom, stage and studio lighting, floor lamps, landscape lighting, etc. E. Buy with confidence. We aim to ensure your complete satisfaction. We offer one year warranty and 90 days 100% refund or free exchange. If you have any questions, please contact us.