Heraeus Compatible - NN1 400/147XL - 400 W Item:Ballast * mw/cm^2 is a measure

* mw/cm^2 is a measure of the light intensity at a given moment

This does not alter the pH

The germicidal lamp bulb has a long lifespan and a low mercury dosage that meets the environmental standards

Ushio MHL-5000/2 Metal Halide UV Lamp

Heraeus Compatible - NN1 400/147XL - 400 W Item:Ballast * mw/cm^2 is a measureGuaranteed Replacement UVC Bulb for Heraeus Compatible NN1 400 147XL 61. 8" length 400 W Bulb compatibility: NN1 400 147XL GIA1550T9LCA HO CB 041 Specifications: 61. 8" length (not including pins) or 1570 mm Wavelength: 254 nm 4 pin base Non Ozone 400 W The replacement bulb works to sanitize and kill bacteria, protozoa, molds, virus and yeasts present in water. Germs that cause harmful bacteria and microorganismss such as Vibrio cholerae, influenza