diy fluro overdrive

superskunkxnl

Well-Known Member
now this isnt mine so gotta give cred to bounty29 over at icmag thought it might help some of the rollituppers happy growin friends!

Materials

1. 1"x??" board, cut to desired length (?? depends on how many bulbs you want)
2. Flourescent Ballast, preferably electronic (as opposed to magnetic) suitable for length of bulb you're using
3. Two bi-pin fluorescent sockets for each tube you're using
4. A couple wire nuts for each ballast you're using
5. A male end of a power cord
6. Fluorescent tubes
7. #6 3/4" screws, two for each bulb
8. Drill, or tool to make a hole in the board for wiring
9. Screwdriver, for fine tuning socket mounts and attaching the ballast

Here's what I'm using




(Not Pictured: Male cord, wire nuts, drill, screwdriver)




#2
In my situation, I'll be using 18" bulbs, and in the current cabinet I'll be using four of them. So I'll need two ballasts, four bulbs, eight sockets, and a piece of 1"x8", cut to appx 18.5" (I had mine cut to 20" to be safe, but there's a good inch of wasted board.)

First, place your sockets on one end of the board, and trace where they are, as well as a little mark in the center of the notch on the bottom. That notch is where they slide onto a screw to hold on to the board. Once you've marked the board with where the screw should go, just press it in a little and start turning the screwdriver. (I wouldn't advise the drill for this part.) Once it's almost all the way in (1/8" showing?) try to slip on the socket. Then adjust it so that you can slip it on, but it's a tight fit.



After you've done that, and they're attached firmly, place a bulb into it, and into another socket. Trace where the socket at the other end is, and mark the center. Repeat the previous steps, until you've finished attaching the sockets.

Once all your sockets are placed, bore a hole through the board, about an inch inside the socket. This can be done a few different ways, but I used a 3/8" drilling bit and got them done nice and quick.



Attach the ballast to the back of the board, centered between the sockets. I just put a couple screws in the corners of mine (using a hand powered screwdriver) attached it more than adequately.



I used a four bulb ballast, and wired it to use two bulbs, a method known as overdriving. More information, as well as wiring diagrams, can be found at the thread going on here. Your board should look something like this after the wiring, if using the same setup as me. (The wiring is a little different for a two bulb ballast using one, and wiring them regular.)





You're almost there! Get your male ended cord, wire up the black and white wires, screw them tight, and plug it in!





(Last two pictures taken before ballast was attached)

Edit: Oh, I forgot. I've got a couple of S-screws that I'm just going to put in the four corners, and hang it by a chain so it can be lowered right on top of the plants.

Here's the overdriving wiring guide. Even if you're not using this, it shows how to wire it normally.
Quote:
Originally Posted by bounty29
Here's a couple pictures I found when looking for information about overdriving floro tubes. Apparently magnetic ballasts are no good, you need to get the electronic ones. I might have to look into this...












And now to see how much it costs, and what you get. (All fluorescent items I'm using are T8. I feel that equipment, partnered with overdriving, is the best fluorescent setup for the money right now.)

Fluorescent Ballast - $14.21* (I picked this ballast because it can operate 18" bulbs all the way up to 48" bulbs, and it uses four, so can be overdrivin with two bulbs.)
Fluorescent Tubes - I used 18" 15w tubes, just the size I needed for my setup. Two of these per ballast, and they cost about $1.50 from that site. It looks like the prices for bulbs other than the 18" and 24" ones are a bit high, so maybe you could get them cheaper from Home Depot or something.
Fluorescent Light Sockets- They came in packs of two, so you need one pack for every bulb you're using. I got them for $3.97 per pack at Home Depot.
Pack of #6 3/4" screws - $3.26
Boards - I got a six foot length of 1"x8", cut down to the size I needed right at Home Depot, that cost me $5.45, go with the cheapest wood you need, it's nothing special.
Wire nuts and male end of power cord - $3~ each, I had some laying around.

For the parts just to make the thing light up, it cost $25~, add in the boards and stuff, which I will use for mounting several of the setups, cost about $15. I'll be adding one more ballast to this now (two more bulbs) and when I move to my other cab, I'll add three more ballasts. When using 18" tubes, one overdriven ballast puts about about 51w. For now I'll be using 100~w, and when I move up I'll be using 250w. I'll be starting a run of Sour Diesel IBL in this in a few weeks hopefully, pending the safe arrival of my seeds. I feel that if the plant were scrogged, and these floros kept at a minimum height, I could get a very good gpw number considering the power of the fluorescent lights. I can't wait to test it out.

So for the lights, it cost me $25 for a 51w~ setup. If you were to use a 48" bulb, you'd get about 110w out of each setup, which would probably cost around $30. The 18" setup gives about 1.4w per sq in, where the 48" setup puts out around 1.1w per sq in. It's not much of a difference, but when compared to non overdriven setups, the 18" only gives 0.8w per sq in, and the 48" gives 0.67w per sq in.

What I like about this is all the light is evenly spread out, which suits a scrog perfectly. I'm hoping to run two scrogged plants, each using about half the width of the lights (6"x9" screens.) We'll see how this compares to the 150w HPS, I'm curious to find out. The heat issue should be gone, but will that make this a reasonable alternative? I'll have to wait and see how the grow goes, but I have plenty of faith in the fluorescent lighting, even though there are many people that doubt it.


*Price as of posting time
 
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superskunkxnl

Well-Known Member
sorry pics were there ill get on it now there there you just gotta wait i can see em now
 
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