[Ralfozan]

Hello

I'm so confused about wiring 20m
( dream color ) led strip 2812 .

strip details:
Model: WS2812B strip 5050RGB chips
Input voltage: DC5V
Power:18W/M
Signal: WS2812B chip built-in
Packaging:5M/reel

With 6803 RF Controller

How many power supply I need ?
Should I have an amplifier?

Any one can help me pls

 

[Darkblade48]

The information that you need is in the specifications that you posted.

Each metre of the LEDs will require 18W.
If you want to use all 20 metres at maximum brightness, you will need at least 360W (give more for overhead).