UV lamps degrade before anything else in a disinfection unit – output drops well before it’s visible, which is why replacement runs on a schedule (9-12 months), not a failure light. Luminor manufactures the lamps, quartz sleeves, and controllers behind common UV models including the LB5-151B, S-5Q-PA, SPV-2.5, SP150-HO, and S2Q series. AMPAC keeps these parts in stock so a lamp swap doesn’t turn into a multi-week wait on an overseas order. Full replacement parts catalog: AMPAC’s UV disinfection products.