I have these same strips. They sell them at Tropiquatics in Lombard also. LEDs are 1 watt each. As for are they good enough? Depends on how many you have and what you keep under them. I have 3 two foot strips over my 20L frag tank, and I have primarily softies and LPS, with a couple hardy SPS like monti caps and birdsnest. Great growth on everything. They work pretty well, but I would recommend 3 of those 1 foot strips for a 10 gallon, with a 1:1 blue to white ratio. Should be able to keep most things under that.