Equivalent UV Germicidal Replacement Light-sources GPH540T5/4P uv lamp is 28 watts, 540 mm in length. rated effective life 10,000 hrs., change once a year.
We are OEM manufacturer for many branded company for UV lamp and UV Air Cleaners. If you can not find what you are looking for,pls contact us bysales@yuplighting.comWe will satisfy your needs!