Led light upgrade

I use the brand Medic Grow and like em. Simple and works. footnote, I was given these lights and did not pay for them. Out of the other lights I have used they performed just as good. if not a tiny bit better as they are much stronger. I had 300W before in a 2x4 on low efficiency lights then upgraded to 480W "overkill" medicgrow. I would agree getting more watts and just diming down like others suggested. future proofing yourself, and LED's last longer with they don't have as much hydro being pushed though them.

Go with what UV said.

Roughly 4ftx4ft tent, preferably get led equivalent of 4-600watts. Personally I'd get a light that's more rated for a 5x5 flowering space just to ensure my edges get a solid ppfd and there is not too much drop off at the corners of the canopy compared to the centre. Dimmer is always very helpful also. It all depends what your really looking for from your grow and how hard you want to push growth. 400w led is more than enough. 600w if your feeling big or go home. Gluck.