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  • CHMG made the instructable Permanent Digital LED House Holiday Lighting2 years ago
    Permanent Digital LED House Holiday Lighting

    Great idea, and I know how much pain it is to get adequate power to the larger displays. The WS2812b is a great performer. lots of lumens, and it has reverse voltage protection. The biggest problem is that it runs on 5 VDC. Its forebearer , the WS2811 is a 12 VDC device, and if you are into big displays, a wiser choice, that is if you want to compromise on the lumens, and the fact that if you misconnect it, the strip(s), are toast. Before I forget, thanks to LaserDave on his suggestion of a a filter on the DC input of each strip, my pixel failure rate has dropped to 0 since I implemented that change. I also have a spike supression filter on the output of each supply to manage the turn on disturbances. I can't tell you the exact circuitry as I bought them from China and they are epoxy en...

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    Great idea, and I know how much pain it is to get adequate power to the larger displays. The WS2812b is a great performer. lots of lumens, and it has reverse voltage protection. The biggest problem is that it runs on 5 VDC. Its forebearer , the WS2811 is a 12 VDC device, and if you are into big displays, a wiser choice, that is if you want to compromise on the lumens, and the fact that if you misconnect it, the strip(s), are toast. Before I forget, thanks to LaserDave on his suggestion of a a filter on the DC input of each strip, my pixel failure rate has dropped to 0 since I implemented that change. I also have a spike supression filter on the output of each supply to manage the turn on disturbances. I can't tell you the exact circuitry as I bought them from China and they are epoxy encapsulated, they were $1.50 each, but they have helped with the pixel failures as well. They appear to be a an inductive/capacitive/ resistor device. I am using the strips year round for architectural lighting as well as displays for special occasions. Each mounting device is a 1 meter aluminum strip which can be screwed or glued in place, the led strip is laid in place, then a translucent cover snaps over the whole thing. The cover protects the strips from the degradation by filtering the suns UV light. The first part of my array went into service 5 years ago, and I have not suffered any LED failures. The covers have yellowed slightly, but there seems to be negligible reduction in light output. The channels also make power distribution much simpler, I am using low voltage #16 fine stranded PVC control wire, which I lay in the channel behind the LED strip. I find that by doing this I can daisy chain 2- 5 Meter 30 LED/M strips and still have full white illumination. The mid point connection ties both strip + & - connections together and to the 16 ga + & - conductors. The channels are not cheap. I found a 100 piece lot with covers in China for $1.39 ea. which is worth the money for the protection. Larger lots bring the prices down. I have seen them as low as 0.75 ea US for a lot of 300.I believe they are available from Holiday Coro, but I am not sure of the price.See the pics.

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