MARS is a less expensive Chinese manufactured brand. I believe TopLED manufactures them along with a few other “low end” brands like Vipar, WellPAR, GrowBLU LED, and most of Apollo’s LEDs, as well as Sunspect and probably many others I might be forgetting.
If you get the right light with a decent spectrum and maximized PAR, you can get amazing results with them.
I believe @hillcrest21678 uses one in his grow along with some CFLs. And @TxGrowman has used them.
~MacG