Mars ts 2000w and ts 600w

The tsl 2000 is good for a 2x4 The ts600 is good for a 2x2 or maybe a 3x3 You are a little under gunned light wise for a 4x8. Your lights would be good to flower 12 sq. ft. Maybe 17 square.. so about half of what you are hoping for. Could probably away with it for sure, but will not get the results you could with more lighting. Will definitely have some spots/plants begging for more light.

Ok so is it best if I veg with the smaller 600w one and then flowering them im using a 400w hps the mars hydro ts 2000w and a maxibright daylight 200w led so will be pull watt of 900w total or is that now to much ???

Whoa. Not even close! That won’t even cover a 4x4 The lowest I would go for a 4x8 is at least 1000 total watts. You have about 400

The ts2000 is 300watts draw The ts600 is 100watts draw Total = 400watts estimated Mars Hydro recommends 2 x ts-2000 in a 4x4 if your 4x8 you may need 4 of them to meat mars hydro's recommended coverage. https://www.amazon.ca/MARS-HYDRO-TSW-2000-Daisy-Chain/dp/B07Q5YBQTM But two ts-2000 should be fine starting out. Just will have some hot/cold spots. The ts600 is ok for a smaller 2x2 tent. but a bit out of place in a larger setup. one golden rule is 1plant for every 100w draw. Given you are totalling 400w. 4-5 plants would do well. or maybe 6-8 autos. They don't require as much light. a light meter will help u find your hot and cold sports in your lighting setup. Good Luck!