I've used totron Cree bars before on my RZR. They are China built, like most cheaper bars. They work well and are durable. I use my RZR at high speed off-road. I'm sure Rigid, Baja Designs and Heritic bars are better lights, but $500 better? I don't think so. You can get a 50" bar on eBay under $100. My bud has the curved 50" on his Ranger and it's awesome.
Buy a $80 Totron. Make sure it is IP65 or better. If you don't like it, you are only out $80 vs $500+ with the name brand ones.