Electronic Ballast Guaranteed to Work with Aprilaire - 87N77 UV Light Bulb for Germicidal Air Treatment BF4000 Output uW/cm^2 @ 1m: 136

Output uW/cm^2 @ 1m: 136

The XSD puck provides a near flat response over 350-410 nm

The result of this is better productivity

36 Inch Length Lamp - Ozone Producing - Worry Free Performance for 1 Year

Electronic Ballast Guaranteed to Work with Aprilaire - 87N77 UV Light Bulb for Germicidal Air Treatment BF4000 Output uW/cm^2 @ 1m: 136UV ballast guaranteed to work with your UV germicidal system Features: Guaranteed to work with your UV Germicidal Bulb. Comes complete with wiring diagram necessary to run your bulb(s) Industry leading 5 YEAR WARRANTY UL Listed Ballasts can be complicated. Nobody replaces ballasts regularly. Inevitably, ballasts are needed when you go to change out the UV bulb at your machine's recommended intervals when you realize that the new bulb is not lighting