I'l check out ViparSpectra. I have a customer who owns a LED company but he retrofits commercial green houses and his systems are not cheap
and couldn't talk to him into doing a budget line.
I was foolish enough to buy a set of 4x 600w mars hydro in an attempt to get my new grow room going, long story short, I used two to veg for aprox a month & half. It literally stopped working.
Another the LED's kept going.
I gave one to a friend & he said I should of paid him to cart it away.
(They were OK, when they worked. Not as good as hps I thought.)
So, the old hps lights are back out.
Now I'm out almost £500 quid on crap Chinese lights & looking about a decent set of cobs.
My advice, forget about the cheap shit. You get what you pay for in the long run.