A single t8 bulb does not put out enough light or uvb untill you pack in 3 or 4 of the 24" bulbs to adequately supply uvb and maintain plant life which at this point you no longer have any space on top.
The cost of this rout seems ludicrous, however... given the fact that you do not need to supply a lot of uvb in order keep your buddy happy and healthy... maybe it is better than I give credit and should have just stuck with what I had.
T5HO lamps suck poo poo, sorry to say... and produce a lot more heat than they are worth. Heat that is extremely difficult to set up an exhaust for due to the akward shape of the units. Keeping the temperature in the room stable is much more important that trying to grow plants so this method is not worth the extra trouble for me personally...
However to controdict that statement there are specially made t8 and t5 lamps that have a cooling system pre built into them, but the cost goes up infinitely.
I may be alone on this but I don't have and extra 200-600 bucks kickin around to spend on 2-12 lights in order to meet my needs.
I need one light that takes up minimal space, is easy to hang, easily controlled, capable of keeping my buddy happy and healthy and will keep my plants flourishing.
Over kill is a rude thing to say. Some people just don't believe that you can ever have enough light. I am one of them, that is until you are literally burning your skin and retinas just from being in the room.
I think OCD is more accurate but thats ok.
With the little knowledge I have about lighting and growing plants I do know that a single failure in ventilation could get the temperatures up well past 100 with any High Intensity lighting fixture and roast our little friends like miniature thanksgiving turkeys or turn the top leaves of your plants to dust... and there aint nobody got time for that...
so if you are not confident in your ability to figure out how to manage temperature then stick with the easy lights from the pet shop.
Any way, getting to the point.
Proper Ventilation and
Adequate Light
In order to utilize more powerful lights there needs to be a way to exhaust the ambient heat created from the bulbs operation. Moving air quickly over the bulb and circulating fresh air into the room which is then passed over the bulb again is an efficient way to achieve this.
A single 150w HPS or 200w MVL is capable of keeping every plant alive and slowly but steadily growing in a 36x36x48 aluminum enclosure as well as supply all the heat, light and uvb your little friend could possibly ever want or need.
These lights are knows as HID( High Intensity Discharge) and are readily available all over the place. They are used for security purposes on buildings, lighting up housing signs and most notably street lamps and growing plants indoors.
Local flower shops will try and suck the money from your pockets for a "special plant growing bulb and hood with ballast" which I would suggest going against and instead getting a lower quality and lower wattage system because we are not trying to grow a giant room full of plants, you can cause a lot of harm to your delicate little creatures if you go crazy with lights.
Keeping these bulbs cool enough to use indoors is the hard part but thanks to whoever came up with the idea of a cool tube this is no longer a problem! You can find pre made cool tubes online and multiple videos of how to make one for yourself for pennies on the dollar. Well, less than 100$ at least, and save yourself the time and money in the future and buy a switchable ballast up from. Switches from hps to metal halide
Mercury vapor comes in a couple shades of blue that look the most similar to natural daylight and High pressure sodium has an orange sunset type hue similar to the fall which are useful in simulating as close to the real deal as possible. I suppose putting them on arched tracks that are timed to follow and mimick the position and color of the sun would be only a small step from that point though...
Anyway if you want to build your own heres a shopping list, find the how to guide on google
Materials needed
hurricane cylinder(s) 1 glass 1 plastic(optional)
1 piece of springy metal that fits tightly into the cylinder capable of suspending a lightbulb into the middle of the cylinder.(mulitple pieces may be required) wire coat hangers work great.
bathroom exhaust blower cubic feet per minute (CFM) is irrelevant.
alluminum dryer tubing
1roll alluminum coated tape (silver tape)
1 100w high pressure sodium or mercury vapor lamp bulb
1 100 w hps or mvl ballast, rated for 120v AC (important that the ballast is made for either hps or mvl as you will burn out your bulb if you buy them seperate and dont pay attention.
I personally bought mine from a friend that used to grow marijuana. and it still works great, producing excellent uvb levels for 2 years now.

woohooo