About UsAffyBulb is a quality manufacturer specialising in the development of UV filtration equipment for ponds. We are committed to providing our customers with safe and reliable products and excellent after-sales service. SpecificationsOne UVC 36W 2G11 PLL replacement lamp, Lamp length : 411mm Total length : 417mm Diameter 17mm Lamp holder model: 2G11-4pins Tips for use1. Before purchg a lamp, please ensure that you are using the same lamp specification as our product. 2. In order to achieve the best results from our products, we recommend replacing the bulb with a new one every 6-8 months. 3. Due to the sensitivity of the UVC light source to human DNA, direct exposure to people, animals and plants or looking directly at the light source while using the product is prohibited. About after-sales serviceIf you encounter a broken bulb or a bulb that does not light up, please contact us via station letter and our customer service will do the return refund for you. About InvoiceWhether you are a corporate customer or an individual customer, you will be provided with a purchase invoice for all AffyBulb brand products. After payment, the system will automatically generate a purchase invoice for you, please download it from the order details.Practical tips : Due to the sensitivity of UVC light source to DNA, it is forbidden to directly illuminate people and animals and plants when using the product, nor to directly look at the light source In the use of any questions, you can consult us, our professional customer service at any time online for you to answer. Adopt cold cathode technology, Independent research and development of long-life wick, prolong the service time. Our products have passed CE certification and meet RoHS standards. Please make sure your lamp specifications match ours before purchg. AffyBulb UVC replacement bulb, in order to achieve better disinfection and sterilization effect, we choose a high purity quartz glass tube, so that the UV transmittance of 253.7nm is up to 90 , and the amalgam can adapt to the ambient temperature of -10 80, to ensure that it still has a stable UV output under different temperature conditions. Lamp length : 411mm Total length : 417mm Diameter 17mm Lamp holder model: 2G11-4pins. AffyBulb 36W PLL replacement bulb, built-in 220 240V anti-interference capacitance, more stable output UVC. Widely used in family, hospital, swimming pool, aquarium and aquaculture and other places of purification disinfection sterilization.