Clip-on UV lamp, UVA+UVB compatible, multiple wattage options. - Type: UV lamp - Voltage: 110-130V / 220-240V - Wattage: Supports 25-75W - Clip-on: Designed with a clip - UVA+UVB: Emits UVA and UVB rays Thank you for viewing. I purchased this in May of this year for raising a small turtle and used it for about two months. There are two lamps, 25W and 50W. I only opened and used the 25W lamp and have put it back in the box. The 50W lamp is unused. The small turtle grew over the summer and I no longer need it, so I am selling it.