Buck Scientific tests each hollow cathode lamp at our Norwalk, CT manufacturing facility on the new Atomic Absorption spectrophotometers before shipping them out to customers. All lamps have a 6 month warranty against manufacturer defect.*
*(With the exception of Selenium hollow cathode lamps, they have a 2 month warranty due to the volatility of Selenium)
Buck Hollow cathode lamps have the highest output (energy) at the lowest current for best stability and lifetime.