Item Dimensions: Diameter: 9.5mm, Height: 78mm, R7S double-ended base. Please measure carefully and compare with the bulb's specifications before purchasing. Dimmable: These bulbs are dimmable and provide 2100 lumens of brightness. If flickering occurs during dimming, adjust the dimmer setting until the light stabilizes. High Quality and Durability: Easy to install, consistent luminescence, and long lifespan up to 2000 hours. Wide Application: Suitable for home, workshop, stage and studio lighting, museum, playground, factory, parking lot, billboard, construction site, and security lighting. What You Get: 6-pack of 220-240V, 150-watt, 2100-lumen, 2800K double-ended floodlight bulbs. Includes reliable after-sale service. Size Note: R7S bulb length is 78mm. Confirm your required size (not 118mm) before ordering.