The customer reported approximately 80 warehouse lights that we inoperable even after new bulbs were inserted. This indicated that the ballasts were damaged. Schuelke tried to locate replacement parts for the existing lights however the parts were no longer available through our normal vendors. Our recommendation would be to replace the existing halogen bulb lights with new LED bulb lights. LED lights are brighter, last longer than standard bulbs and more importantly there is a substantial difference in energy efficiency saving money on energy costs in the long run. The price to replace the existing lights is based on the bulk purchase of new LED lighting equipment. The more we can purchase at one time the better the cost for materials and labor will be. The base price for purchase and installation of lighting is as follows $480.00 per light