rubbermaid box

so i building a Rubbermaid growbox for my first grow. i have most of it figured out except for the lights. how do most of you fix your lights in your Rubbermaid. Im going with CFLs. they are 35gallon containers. should i fix the light to side the box? i only worry bout hangin to high and light not reaching them
 
For my box i drill holes in the top just big enough to squeeze in and fit snugly. the sides should be reflective mine are flat white. i use cement blocks to raise my plants closer to the lights. If you have any questions about growboxes.. Private message me.. I think ive got them mastered. :)
 
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