OH made me a grow box for my seedlings, we used an old computer cupboard and fitted it out with a fluorescent light and some reflective material that i'll probably replace as it's not as effective as white paint, so i've heard.
This is the computer cupboard
First job was to take the shelving out of it.
It looked so much bigger when the shelves were out.
Next job was to wire up the fluorescent light, we used the cable cut from an extention cable we had lying around
And tested to make sure it was working
It was then fixed to the top of the cupboard and some white coated hardboard fixed to the back of it.
Looking at it, i'm not convinced that it will adequately house all the seedlings that normally reside on my window ledges but I will cram in what I can :)