Industrial Lighting Solutions Emperor Aquatics 02040, 02080, 02240, 02280, 20040 40WUV Water Treatment Effective Hours Rating: 10,000hrs - Ultraviolet Germicidal Light Bulb Pond SmartUVSterlizerTM Pond SmartUVLiteTM Aquarium SmartUVSterlizerTM 80-Watt (Requires 2 of these bulbs) Pond SmartUVLiteTM 80-Watt (Requires 2 of these bulbs) Aquarium SmartUVLiteTM 80-Watt (Requires 2 of these bulbs) Aquarium SmartUVSterlizerTM Aquarium SmartUVLiteTM Pond SmartUVSterlizerTM 80-Watt (Requires 2 of these bulbs) Length: approx: 33.18 Bulb Type: T5 Style Quartz Glass