Power Supplies

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Intro

When your working with pixels or any type of led, they will be ran on DC voltage. To do that you will need to run some sort of power supply. There are many types you can use.

Waterproof Power Supplies

Waterproof power supplies are really nice in the sense that you do not have to really worry about moisture as much as a non waterproofed power supply. Before placing a "waterproof" powersupply in a weather exposed area, check it's IP rating to determine what level of protection is required. You should still put it in some sort of shelter just to be safe. These are a little more pricey than a standard switch mode power supply but alot less headache. They come in a variety of sizes so you will have to choose what will work best for you.

With 5v the voltage drop will be noticeable if your trying to push the voltage for a long run. Most likely you will need to inject the power again or feed from the center of the pixel string. For every 50 pixels, you should re-inject the power. So a good example, if you have a 100ct pixels string you can connect the signal wires end to end, but you will either have to put the power at the center of the string to feed each side. Or you will have to put a power source on either end. A 50ct pixel string will pull around 3amp (50x.06=3amp). So really finding smaller power supplies is a good thing to have if you have your pixels spread around the yard. If you have like a pixel megatree then you can do a large power supply to feed the whole tree. So bigger is not always better esp if your not power alot of pixels close by.

12 volt is a bit different. You can push 12v further than 5v. So that does have its advantages and disadvantages. Most pixels strings are only 5v. There are some that are starting to 12v but it may be a bit before more start to come out. So 12v is alot nicer but not as many options.

Also with some of the waterproof power supplies they use waterproof connections. Those can be purchased from china. They are similar to what are used on rope lights. 'Add Picture'


Waterproof Power Supply Vendors:

12v IP66 Waterproof 12v / 3.75 Amp / 45 Watt Power Supply (without power input cord)

12v IP66 Waterproof 12v / 3.75 Amp / 45 Watt Power Supply (with power input cord)

Non Waterproof Power Supplies

Vendor Type Input Voltage Output Voltage Output Current Link Image Price Price per Amp Size (HxWxL) Note
5VDC
DIYLEDEXPRESS 300W Switching Mode 100V~120 VAC 5VDC 60A link $27.75 $0.46 49mm x 114mm x 226mm Fan Cooled
Holiday Coro 350W Switching Mode 100-130 VAC 5VDC 60A link $32.95 $0.55 2"x4.5"x8.5" Fan Cooled
Ray Wu 350W Switching Mode 85 - 264 VAC 5VDC 60A link $20.00 $0.33 50mmx115mmx215mm Fan Cooled
12VDC
DIYLEDEXPRESS 360W Switching Mode 100V~120 VAC 12VDC 30A link $27.75 $0.46 50mm x 112mm x 214mm Fan Cooled
Holiday Coro 350W Switching Mode 100-130 VAC 12VDC 29A link $29.95 $1.03 2"x4.5"x8.5" Fan Cooled
Ray Wu 350W Switching Mode 85 - 264 VAC 12VDC 29A link $20.00 $0.33 50mm x 115mm x 215mm Fan Cooled
24VDC
DIYLEDEXPRESS 200W Switching Mode 100V~120 VAC 24VDC 8A link $28.00 $3.50 50mm x 112mm x 214mm Fan Cooled

Converting ATX Power Supply

Wall Warts

Wall warts are not the greatest to try to run pixels off of. First off most are to small to supply enough amperage. Also they do not supply very clean power to the pixels. Your best bet is to stay way from these.