TMC PROCLEAR 110 WATT (2X55 WATT LAMPS) POND UV ELECTRONIC BALLAST FOR 2 X 55 WATT ULTRA VIOLET LAMPSIF A REPLACED  ULTRA VIOLET BULB IS NOT WORKING,THE BALLAST IS THE MOST PROBABLE CAUSE OF A LAMP FAILING TO IGNITEEASY DIY REPAIR.THIS IS A ELECTRONIC BALLAST ANDWILL OPERATE 2X55 WATT T8 UV LAMPS.MANUFACTURER OF BALLASTS MAY DIFFER FROM THE ONE SHOWN.