Well I just got done with my first indoor grow with a 400 watter. But my landlord got on my ass about the electric bill being high. I had a 400 watt hps and metal halide with 2 booster fans exhaust and intake and a high output oscillating fan. I wanted to do another grow with just 6 26watt cfls and two feminized autoflowers. I didn't know if it would be enough light for a good grow and keep the energy cost down.