40 Watt Ideal Horizons 11001, 12012, 12003, 12008, SH15 UV 40W Uv, UV-C Bulb Effective Hours Rating: 12,000hrs - Ultraviolet Germicidal Light Bulb Length: approx: 33.18" T5 Single Pin Bulb Type: T5 Style Quartz Glass 10,000 Hour Long Life Lamp