I use a 85 watt (actual wattage) flourescent, 5500-6500 Kelvin and 4 - 43 watt flourescents, 2700 Kelvin...I am going off memery on the Kelvin, but basically cool light for veg, warm light for flowering. Approxamaitly 850 watt equivlancy and plenty of lumens. Each light can be turned on and off to help control heat if necessary.....This is in a 2' x 2' x 4' space and works great for 2-3 plants.
I used a heavy cardboard box and lined the inside with some ridgid (1/8" thick) white poster board. reinforced the top and cut holes for lights.

Box - Free
85 watt with fixture- $40
43 watt with fixture- $9 ea.
poster board - $6
digital timer - $20

Total cost for cab - $102

This was a great starter cab, cheap and effective. worked for 3 lowryder grows with good results.