I want to build several letters out of fluorescent light bulbs for example one letter is o but it will look more like.
Build your own fluorescent light fixture.
Now for building your own fixture.
You need to buy a spiral cfl with the proper wattage you want.
A burnt out lamp is the most common reason any light fixture does not light.
This is great fixture for growing plants.
Or you can read the printing on the tube to identify the correct replacement type.
To replace remove the old tube and bring it to the hardware store.
A fluorescent tube that is failed or failing usually has darkened areas near one or both ends of the tube.
Each letter will be constructed of 4 lights.
This guide shows how to build a system that will fit for almost any growing needs indoors.
I want to use bulbs that are 2 4 feet long or what ever is easiest.
From scratch without buying light fixtures and taking them apart.
Just attach the bulb ballasts plug it in.
Locate a ballast as i mentioned above i have been recently experimenting with using spiral cfl ballasts to power other bulbs.