LSE Lighting 9W UV Bulb ZW9D12W-H145 G23 Base Germicidal Ultraviolet Brand: LSE Lighting (Trademark of Light Spectrum Enterprises Inc) Life: 10,000hrs Super Life Base: G23 Bi-Pin Wattage: 9W This UV bulb by (LSE Lighting) brand is fully compatible with cross reference model ZW9D12W-H145