***Skipped a ton of this thread so if it's been mentioned or hashed out already, don't flame me for that.***
In my opinion, there are 2 main categories when in comes to LED bars, with 2 sub categories for each. Main categories are USA bars vs. Chinese bars. The US bars are going to be premium quality at a premium price. You can't go wrong with them, but it's more than some want to spend. In that category there's going to be basic bars and high end bars. Some companies are only in one or the other, and some make both (KC has several different series bars the span a range of prices). In the Chinese bars, your going to have better bars, and bad bars. My guess is a 40" Chinese should be around $400. These are usually American companies that produce in China (M&R, TMX, etc.). There's the lower category of Chinese bars like the one you mentioned. I would personally stay far away from it. These going to be Chinese companies. They'll almost always be much worse quality and 0 customer service.
In my opinion, there are 2 main categories when in comes to LED bars, with 2 sub categories for each. Main categories are USA bars vs. Chinese bars. The US bars are going to be premium quality at a premium price. You can't go wrong with them, but it's more than some want to spend. In that category there's going to be basic bars and high end bars. Some companies are only in one or the other, and some make both (KC has several different series bars the span a range of prices). In the Chinese bars, your going to have better bars, and bad bars. My guess is a 40" Chinese should be around $400. These are usually American companies that produce in China (M&R, TMX, etc.). There's the lower category of Chinese bars like the one you mentioned. I would personally stay far away from it. These going to be Chinese companies. They'll almost always be much worse quality and 0 customer service.