SURE! For all of us that can just shit out the 150.00 for a cheap one. You can do just fine under LEDs. Although he is correct in that you will need significantly more light. In my 4x3 my LEDs I use 480 watts of power from the wall and perform nicely. I don't have to worry about the heat from a HPS/MH combo. I also don't have to worry about looking at a 15.00 bulb wrong, and it shattering. JMHO.