I bought 8 4 foot LED shop lights from Sams. After 1 week one of them only lit up 3/4 of the LEDs. That is to say one row of lights worked and only half of the other row worked. I called the manufacturer and got a women. She asked my if I had pulled the light chain to turn the light on. I said 3 quarters of them work so the chain is not the problem. Then she ask if I was sure I had it plugged into a working electrical outlet! I said how do you think the other 3 quarters LEDs are working? So then I am at DMV registering a new trailer commercially. I guess I look like a homeless and worthless person because every DMV employee questions how I could possibly want to register anything commercially. Even when they are told that I have 3 trucks and 15 other trailers commercially registered They call me a liar and have to look them up to see for themselves. So don't feel too bad; people discriminate against looks as well as sex. Everybody likes to think they are better than everybody else.