Reddit Reddit reviews Rextin DC 5V 60A 300W Regulated Transformer Power Supply Driver SW For LED Strip Lights (300W)

We found 1 Reddit comments about Rextin DC 5V 60A 300W Regulated Transformer Power Supply Driver SW For LED Strip Lights (300W). Here are the top ones, ranked by their Reddit score.

Rextin DC 5V 60A 300W Regulated Transformer Power Supply Driver SW For LED Strip Lights (300W)
Led power supply transformer driver SW, Input: AC 110V/220V 50/60Hz, Output: DC5V 60A 300WSmart device surge protection for Short-circuit Protection, Overload Protection, Over Voltage,Over Temperature Protection. High efficiency, High Reliability, Low Temperature RiseCertificates: CE/RoHS/FCC ApprovedWarnings: Don't open or modify the led power supply. Please leave children, kids far away from high voltage power source. Please use it under professional electrician's guides. Any abuse or improper use will void warranty.widely used in LED lighting, Home Appliance, Instrumentation, Office Automation, Telecom, Process and Engineering Industries etc
Check price on Amazon

1 Reddit comment about Rextin DC 5V 60A 300W Regulated Transformer Power Supply Driver SW For LED Strip Lights (300W):

u/LongLiveCHIEF ยท 2 pointsr/FastLED

The real question is are your strips 30 LEDS per meter, or 60? If it's 30 per meter, you can seriously downsize your power supply.

For reference, I have an array of strips of 60/m ws28xx, and bought this 300W 5V 60A power supply. I have 987 total LEDS, that at max intensity would consume 295 W and 59 A.

The strips of 60/m are approximately 18w per meter.

If you are using the same strips as me, then the maximum supply you would need would be 150W 5V 30A

One other important note... the power supply is not a constant current supply. The current drawn from the supply will vary depending on the intensity and refresh rate of the data.

Basically, the "max" draw should only happen if you are setting each individual to it's max intensity of white, and signaling a refresh of every LED in the array at 800kHz.

Here's the math. You'll see I added some margin to the final values for safety. You may not have the same LED's as me, but the math can be done the same way for whatever your LED chipset is.

50 LED's per segment / 60 LED's per meter = .8333 meters
.8333 meters 8 segments = 6.667 total meters
18W per meter
6.667 meters = 120 Watts per matrix
120 Watts / 5V = 24 Amps @ maximum intensity

Edit, I just noticed your link to your LED's, and they consume 0.3W per LED. Just so happens that equals 120 Watts, so the recommendation above should hold.