re the 5x5 tent... i've been told the sq footage of a tent should match the lights ability to fill that area. IOW, if one is trying to set up a smaller area of plants i.e. 2x2 or 3x3 within the 25 sq's using a light designed for the 2x2 or 3x3, even if properly placed above those plants, light is lost or wasted in filling the whole space.
true? LED's are more focused and directional than hid I believe...