Usage Tips: 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 stable. Durability: Easy to install, with good luminescence and a long lifespan of up to 2000 hours. Wide Application: Suitable for home, workshop, stage and studio lighting, museums, playgrounds, factories, parking lots, billboards, construction site security, and other general lighting needs. 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 that this size (not 118mm) meets your requirements before ordering.