I ordered 3 lights. 2- 15” which are fine. They look great! One that was 20”. All were supposed to have LED bulbs that were going to last for 10 years. Well the 20” only has 1 bulb that works. I paid an electrician to install them. It was early in the day  we could not tell to later that evening that only 1 bulb was lite. 
It’s over my garages. To take down or return I need to hire someone to climb to take it down. This is very upsetting as well as expensive. The cost for the lights as well as installation was over 800. What do you suggest I do next