LSE Lighting Compatible UV Bulb for BioZone Air Purifier 3000 4000 5000 Brand: LSE Lighting - Professional UV Lighting Brand Bulb Type: Ultraviolet Germicidal Bulb UV-C 254nm Length: approx 8.35 inches (212mm); Wattage: 10W; Base Type: 4pin (4pins on ONE END); Warranty: 1 year (recommend to replace every 12 month) This UV replacement lamp by (LSE Lighting) brand is 100% compatible for use with BioZone Air Purifiers models 3000 4000 5000. All lamps listed are compatible brand (LSE Lighting) UV products. We do not sell BioZone brand lamps. All BioZone brand names, trademarks and logos are property of BioZone respectfully. Warning: Ultraviolet Germicidal UVC light is harmful and dangerous to your eyes and skin. Please Use safety gear during installation.