REPLACEMENT COMPATIBLE ELECTRONIC BALLAST FOR THE BERMUDA PRESSURE POND FILTER 18 WATT 10000 MODELS.IF YOUR ULTRA VIOLET LAMP IS NOT WORKING AND THE FUSES/SUPPLY ARE OK,THE BALLAST IS THE MOST PROBABLE CAUSE OF LAMP FAILURE.EASY DIY SOLUTION! FITS IN THE HOUSING AT 80mm x 40mm SUITABLE FOR UV PLL LAMPS REMEMBER TO CHANGE YOUR LAMP EVERY 12 MONTHS!
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