Specifications: Type of bulb: Halogen Base: R7s Double Ended Shape: J118 Power: 300 Watts Voltage: 220V-240V Beam Angle: 360 Material: Glass Size: Length: 118mm, Width:10mm Color: warm white Quantity: 4 packs Lifetime: 2000 hours Features: 1.300w halogen bulbs are instantaneous, no warm-up time required, no flickering, high white brightness. 2.If you find they are flickering when dimming, please adjust the dimmer until stable. 3.Tungsten halogen bulb dimmable can operate for more than 2000 hours, CE approved. Package: 4 x halogen lamp bulbs.