Read What Others Are Saying

The link for the detailed instructions was deleted. Final assembly is, therefore, difficult. This kit should have had more detailed instructions if it is truly meant for the novice student.

Works well, but didn't use at first due to fear of shorting by having it set onto something as there is no bottom cover. I created a 3D Printed to protect the bottom of the board. Linked Here: https://www.printables.com/model/629635-icstation-4x-18650-power-board-cover-gy19481 There are a couple Cons: There is no mention of what the Mode switch does and I haven't been able to figure it out. The unit does charge a client device while charging itself, but once charging power is removed, the device resets the output, so couldn't be used as a battery backup.

Good quality, fast shipping, perfect condition, ideal set or repairs.

Very good product, fast shipping, come in good condition, the same as the pictures and video.

Wow these things are bright! The interesting thing is that there are also through holes so you can add a simple USB or power cable to it.

This is a great value little kit and works very well. It's good for practicing smd soldering and when finished and up and running makes a nice fun little spectrum analyser display. I made up 2 of these kits for a stereo display and mounted them behind some perspex. I also moved the LED colours around to make a more conventional green-blue-yellow-red display for each vertical strip.

Amp works well, but has narrow mains band. I am in USA and mains where I live are 122 VAC. Toroid expects 110 vac but gets 122 and outputs 22 vac. So rectifier then puts out 27 VDC. Blew 2200 uF 25VDC caps right off. Then I installed 4x 2200uF 50 VDC rated Low ESR caps instead. Put on underneath side of circuit board to make them fit. Then I installed a 62 ohm 5 watt resistor. Heat sink then runs pretty consistent at 69 or 70 degrees C. Probably needs slow fan or bigger heat sink.