Features: The fluorescent light bulb features 45W stable output, long life replaceable bulb both for studio and home. 5500K ultra-bright daylight, can provide uniform and natural lighting. Spiral designed light can save 80% energy, eco-friendly and durable features make it perfect for multi-purpose use. Universal E27 socket can meet wide compatibility needs, quick and tight to mount. Perfect light bulb for studio photography, portrait shooting, video making and other occasions.