DIY-HP-LED
Well-Known Member
A Pair of Veg Tube Lights
Here are a pair of 5000K veg lights made from LED street lamp arrays and drivers. The driver stacks are located in the ATX power supply boxes along with the fan power supplies and terminal strip connecter. I'm using the ATX box power supply fans to cool the drivers, but I'm going to try and disconnect one and see what the temperature of the drivers is like with out cooling and if it works out, I might remove the fans from the electrical boxes on both lamps. The 3" x 1" x 30" aluminum tubes are cooled by 30cuft/min fans drawing air up through the tubes and they run about 2.5C above ambient. Each tube lamp uses two 10" X 3" on each end and two 5" X 3" LED street lamp arrays in the center. The driver stack is composed of a 44 watt driver on the bottom and a 88 watt driver on the top, the 44 watt one drives the two center arrays and the top 88 watt one drivers the two outside arrays. They are held together and mounted in the ATX box with nylon stand offs and nuts purchased as an assortment kit on ebay. Each of the two tube lamps uses 132 watts of power for a total of 264 watts used by the pair. The 10" arrays running at 525 ma have an efficacy of 88 Lm/W X 88W = 7,600 Lumins, the 5" arrays running at 525ma have an efficacy 90 Lm/W X44 W = 3,750 Lm, for a total light out put per veg lamp of 11,350 Lumins, so the pair of lamps output 22,700 Lumins.
Here are a pair of 5000K veg lights made from LED street lamp arrays and drivers. The driver stacks are located in the ATX power supply boxes along with the fan power supplies and terminal strip connecter. I'm using the ATX box power supply fans to cool the drivers, but I'm going to try and disconnect one and see what the temperature of the drivers is like with out cooling and if it works out, I might remove the fans from the electrical boxes on both lamps. The 3" x 1" x 30" aluminum tubes are cooled by 30cuft/min fans drawing air up through the tubes and they run about 2.5C above ambient. Each tube lamp uses two 10" X 3" on each end and two 5" X 3" LED street lamp arrays in the center. The driver stack is composed of a 44 watt driver on the bottom and a 88 watt driver on the top, the 44 watt one drives the two center arrays and the top 88 watt one drivers the two outside arrays. They are held together and mounted in the ATX box with nylon stand offs and nuts purchased as an assortment kit on ebay. Each of the two tube lamps uses 132 watts of power for a total of 264 watts used by the pair. The 10" arrays running at 525 ma have an efficacy of 88 Lm/W X 88W = 7,600 Lumins, the 5" arrays running at 525ma have an efficacy 90 Lm/W X44 W = 3,750 Lm, for a total light out put per veg lamp of 11,350 Lumins, so the pair of lamps output 22,700 Lumins.
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