I have a customer with a zerozone 3 door freezer with both ballasts burned out. The OEM Anthony ballasts are outragously expensive. Aftermarket Fulham ballasts are pretty pricy too. Then I thought about converting the case to LED lighting. The LED bulbs range in price from a little cheaper than the Fulham ballast to about 50% more. Anyone have experiance with LED retrofits and can recommend a brand? Or am I best off staying flourescent?