It took 10 minutes to put in a TUVL-100 light in our air conditioner and the bulb, on line sells for $72.00, and they charged $175.00. If this is not gouging what is. Nice to overcharge seniors! Would not return my phone call either. What could he say. Do not get this light in your air as you have to change the bulb every year, something we were not told, and they just jack up the price.