Or you can read the printing on the tube to identify the correct replacement type.
Build your own fluorescent light fixture.
A fluorescent tube that is failed or failing usually has darkened areas near one or both ends of the tube.
Just attach the bulb ballasts plug it in.
Each letter will be constructed of 4 lights.
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.
A burnt out lamp is the most common reason any light fixture does not light.
This greatly decreases the cost of the fixture.
Locate a ballast as i mentioned above i have been recently experimenting with using spiral cfl ballasts to power other bulbs.
Build a customized fluorescent lamp system t5 when growing seedlings and plants in the vegetative stage using fluorescents is a great way to provide the beloved plants with bright and balanced light.
You need to buy a spiral cfl with the proper wattage you want.
Now for building your own fixture.
This guide shows how to build a system that will fit for almost any growing needs indoors.
I want to build several letters out of fluorescent light bulbs for example one letter is o but it will look more like.