Equivalent UV Germicidal Replacement NNI 600/147XL OOA uv lamp is 600 watts, 1554 mm in length.  rated effective life 10,000 hrs., change once a year.

Each lamp tube adopts advanced mercury amalgam formula. The optimal mercury amalgam formula controls mercury vapor pressure and solidifies mercury, resulting in a wide working temperature range for stable light output; Maintain high-intensity ultraviolet dose output even in environments with high working temperatures.
Each lamp adopts the best coating technology to maintain high ultraviolet transmittance and extend the service life of the lamp tube.