... out254nm UV single lamp, high transmittance quartz sleeve, ballast-power supplySingle open end styleSight port to view the germicidal ... HElectric supply: 220-240V/60HzMaximum operation pressure: 125PSIApplication: S-model UV sterilizer mainly uesd for family,water plant and laboratory ... electronic ballast,304/316 stainless steel chamberOther UV lamp power model also in stock such as 30W, 55W and 110W