Yup yup and yup you grass thugs answers your own questions! Yeah my light is designed to cover at least what a 400watt hid can, and a core coverage of 3x3foot area I suspect it can do a little more perhaps up to 4x4 IM in a 20 inch x 3ft x 6 ft tent it is more than enough light for that, , the plan is to buy at least 2 more of the light I have so it will be like this "THE PLAN"= (small tent breeding CS sprayed pollen exposed area MARS2 80x5watt,fart fan exhaust to shop,,//,med 2x4x7ft tent veg area t5 light ,glr light schedule,4 inch exhaust system vents to stealth exhaust port,,//,,big 4x4x7ft tent flowering,2-4 mars2 80x5watt lights (maybe a cob light mixed in) 6 inch 445cfm inline exhaust system vent into stealth exit, Neg ion gen,,and circulation fans) and I will probably keep all my lights to use for a mega grow some day,and indoor veggie production