that sounds pretty damn decent! is the x5 a specific brand? sounds like it's worth looking into for sure!
I've bought 3 now, 1 for me 2 for my dad. They came from different sellers but the units are exactly the same. I'm sure they are made in some China factory and other people buy them in bulk and sell them.
But I can vouch for their ability. They spec out very nice. The only unknown is how long they will last. But at 100$ a pop, even if they only last a year I'm ok with it. I'll probably buy another one just cause they are cheap and to have a spare around incase I need it.
Search Amazon for X5 COB
You'll see them. Not the burple one but the sunlite one. Perfect spectrum, only 250w from the wall, only heats the tent up by 2 or 3 degrees and it's cheap! What's not to like? Lol