Or you could maybe run the wiring through a narrower pipe, mounted on top, like a channel, and have the actual power cord out the side of that at one end. might be with rain gutter you could mount the double fixture on one side of the guttering, if it was deep enough to allow for the bulb to be fitted in, and have the power cord come out the back of the piece of gutter. Only drawback I can see is that the power cords are going to be on top of the fixture, not to one side or behind it. They'd be deeper than the pipe would be too. And the same trick would work for rain gutters, that do not have to be sawn in half, and you can get them in 4 or 5 inch widths. The poster used 4 inch pipe, I'd guess the worst of it would be sawing the pipe in half. maybe a washer or clamp or whatever to keep it steady, then two CFs screw into it, and they are horizontal ! Just needs a plug cord. Just dril a hole through the top of the pipe, mount the fixture through it. The CF lights were mounted in those double ended fixtures you see in the top of most cheap medicine cabinets for bathrooms. Just saw a post about using PVC pipe, sawed in half lengthwise. This patented design creates more light on the plant canopy and uniform light distribution promoting large, consistent yields. It is amazing what you find when you look around. Overview AVAILABLE WHILE SUPPLIES LAST No open duct holes increase the reflective area by 30 when compared to standard air-cooled designs. With the price of a store bought hood being what it is, I am surprised there are not more DIY ideas for these things. I wonder if just slathering the connections with silicone sealant would do ? I do seem to recall from the days I drove an old Dodge van that stalled every time it rained, that silicone is electrically conductive, so might not be a good electrical sealant. Is there some kind of waterproofing material that is heat resistant, and not toxic to possible tank life, such as shrimp, that I can use ? Or are there socket bases designed for damp applications ? I know the big fixture manufacturers offer fluorescent fixtures for damp areas, they are sealed somehow, but how I do not know. not to mention every time I feed or plant, having to open it or take it off the tank. But they'd be very exposed, even with polycarb or glass over the water. But would simple lamp sockets do ? They are easy to wire up, I'd just need a 3 wire electric cable, so I could use a grounded plug. I'm thinking a pair of gutters would cover the tank, it's 12" wide. May be used in a horizontal or vertical position inside or outside the plant canopy. No heat means that the grow light can be placed closer to your plants for improved productivity.
Wish I had access to a workshop, because I' d love to make a hood of sheet aluminum, but no such luck. Garden indoors year-round with Hydrofarm’s Compact Fluorescent CFL Reflector (bulb not included). So warping is not likely an issue, that's good to know.
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