wow I think my tent only looked that good for a day or until I put plants in it lol I have seen some grow with those type of lights but they were alot closer Like right next to the plant and they had way more than 4, You should read about lighting ,it looks like you have enough height for leds .this weeks news letter talks about lights,You could ask about growing with what you have and someone who uses them might have different thoughts than I do lol