The TrojanUVMax lamps are offered as a high output mercury vapor or high output amalgam based depending on the UV model. Both lamp types offer reliability and stability giving off the most amount of UV intensity in a compact design. The high output lamps that are used in the TrojanUVMax systems have a one year life while the high output amalgam based lamps that are used in the TrojanUVMax Pro and Light Commercial series offer a two year lamp life. All VIQUA lamps are designed to operate with a specific ballast so be sure to GET GENUINE and contact your dealer in order to order the correct lamp when it's time for replacement. Systems used in: H, H+, Pro20 Lamp Life: 18,000 hours (2 years) Description: Low pressure high output lamp with a black base Additional Details ------------------------------ Package quantity: 1 Warranty: Our Commitment VIQUA is committed to ensuring your experience with our products and organization exceeds your expectations. We have manufactured your UV disinfection system to the highest quality standards and value you as our customer. Should you need any support, or have questions about your system, please contact our Technical Support team at 1.800.265.7246 or technicalsupport@viqua.com and we will be happy to assist you. We sincerely hope you enjoy the benefits of clean, safe drinking water after the installation of your VIQUA disinfection system. How to Make a Warranty Claim Note: To maximise the disinfection performance and reliability of your VIQUA product, the system must be properly sized, installed and maintained. Guidance on the necessary water quality parameters and maintenance requirements can be found in your Owner’s Manual. In the event that repair or replacement of parts covered by this warranty are required, the process will be handled by your dealer. If you are unsure whether an equipment problem or failure is covered by warranty, contact our Technical Support team at 1.800.265.7246 or e-mail technicalsupport@viqua.com.