I had an old plastic three shelf unit made by Plano. White is perfect...free is even more perfect.
I had an old variable speed window fan, my old lights from my closet grow(four 42 watt CFL 2700K), and two new mogul base 60 watt CFL lamps, two automotive windshield light reflectors and some brackets from my wall mount microwave that is no longer mounted to the wall! LOL. I have two timers and a digital temp guage.
I wanted to do one last CFL grow to see if I could maximize light to plant and only adjust lights once a week instead of daily.
Actually the lights stay stationary. The middle shelf with the plant is adjusted up or down instead. This way the lights dont get banged around and the plant is moved out and away for a few minutes while the shelf is slid up or down on the four corner posts and secured with small screws.
The hollow corner posts also double as wire chase for the electrical and also vents from bottom shelf through the top. Home made carbon filters consisting of the old ladies Knee highs stuffed with activated carbon are placed in the top of the hollow post and a carbon matt is secured over the fan unit on the top shelf. One fan and passive vents from top to bottom.
Im in a basement now instead of an upstairs closet so temps are not near as much a problem as before when a a three speed floor fan was used with only minimal temp adjustment and ventilation available.
The bottom shelf has my tea tub and aquarium pump and a small veg chamber. When the tea is done, I put a hose on the pump and water/feed in place. I would go automatic on a timer but after my6 first two grows I still want to control exactly when they drink based on need rather than a timer setting.
Its a work in progress but so far I am really pleased with myself. Pics to follow tonight as the girls sleep all day. This way any possible vistors to my basement while I am at work see no light leaks or hear fans running as this covered shelf hides behind my tool box. Basements are great for this since they maintain cool temps all the time winter or summer.