Eiechip DC-DC Step Up Converter - USB Power Module, 2V-24V to 5V-28V, 2A MT3608 Micro USB (Pack of 10)

Great Product, Great price and as important Great Company to Deal with (package got rough handling and three ferrite inductors were broken and issue was graciously handled by Putian Xiuyu Duoyu Trading Co. Ltd. JUST REMEMBER TO TURN THE POT 15 CW 'LAPS' before powering. Great device, tried in several circuit ideas. Already packaged one to convert 110V led gooseneck lamp to battery operation for safety (no cords) Lamp is mounted to mini parts sled on table saw. Hacked LED series strings for multiple 24V strings and added 1/8 W resistors to lamp The Boost converter ran without hesitation or much heat at 24V 1A until battery cuttoff engaged, about 1.9 hrs. More time than I need to spend on saw at one session. LEDS did not flicker or show any light artifacts from boost converter (used as received - directly connected to battery manager module. Because of low heat, just used board attached to enclosure as heat sink. Easy Peasy. Bob

I purchased these to modify a small LED motion light that originally uses 4 AAA batteries for a total of 6V brand new to use 18650 cells and up the voltage to 6.3V. With a single cell the light worked properly but was slightly dimmer compared to when using 4 brand new AAA batteries due to the lower voltage, and with using 2 18650's in series the brightness was excellent but made the LED's a little hotter than normal due to the higher voltage. So that's where the Step Up module comes in and does an excellent job of providing stable voltage. In addition to working properly, with the micro usb port I could just power the light with a usb power source if I wanted to which is nice to have.

I use these in quite a few of my electronic projects for stepping 5V usb up to 9v for battery replacements or for stepping 3.7v cells up to 12v for using car based products from a pack of 1s 18650s or similar cells. These get quite warm so i dont recommend using them hard but for some LED lighting or similar they could be useful. I like that i can choose between using Micro USB for power in or soldering directly to the board. I wish they offered a USB C variant for more modern compatibility. They can be noisy if you intend to use this for powering audio devices i would be careful due to ground loops possible leading to bad electronic noises. This isnt their intended use but i figure i should mention because i did try it with no luck. Image shows powering a single section of 12v light after adjusting the voltage for a 5v input from a USB power supply to get 12v out.

Used it on 2 Ender3 to convert 24V to a very clean stable 5V for my Raspberry pi upgrade. been working with no issue for 3 years.

Did quick test of all 10. I did all my tests with 5v in, 12v out. Used oscilloscope to examine the output. First into 165ohm load for about 73mA. All worked fine with maybe 40mv of switching noise at 1.2Mhz. I picked one at random to check further. Using a 20ohm load for 600mA, device would occasionally cutout for a fraction of a second. Chip very hot to the touch. Although 600mA and 12V is shown on the datasheet as permitted. It is at the high end. I switched to a 30ohm load for 400mA and seems OK. The chip is hot to the touch. The datasheet goes up to 800mA for 12V out so the product description is misleading when it says 2A. Probably the most amps out is the datasheet curve that shows for 13V in and 18V out - it goes to 1.7A. For 400mA, there was many volts of ripple on the output. Adding 10uf capacitor across the output fixed that problem. So all in all, these seem fine but probably stay below the middle of the datasheet ranges of power output for best results.

I bought these about 3 months ago and followed the tips on turning the pot several times clockwise, then with a DMM, turn the pot counter clockwise until the desired voltage reads. I got these for various uses, but mostly to step up the voltage to a 12vdc 120mm fan (from 5vdc) on a RPI custom case I repurposed out of a PC power supply. They work PERFECTLY! Granted, PC fans do not draw hardly any current, so I did not expect the module to get hot, and it doesn't. I used the module to supply 9vdc from 5vdc. 12VDC spun the fan too fast and I did not need that amount of air flow. This is the simplest use of this module of course. I have not run it through anything more demanding yet, but it was a cheap and reliable fix for a design issue where a component needed more voltage than the project's supply voltage. I will buy more. None of the 10 I received failed at all.

took 2 to get a working 1 a few years ago-now I go for 1 for a project and tested 4 100% failure rate-junk

I was looking for a voltage boost converter to step 5 volts from a USB port up to 12 volts to drive LED light strip tape. These work perfect! The best part is that they have a micro-USB socket already on the board, which makes it very easy to plug in for power in my projects. The boards are very small and fit easily into my designs. The shipping was extremely fast, and I had them in a couple days. I got the 10-packs, and they came in a very nice little clam-shell plastic case, with each board individually sealed in an anti-static bag. I will definitely buy more in the future!

Good

Work great for my experiments.

Funciona muy bien, su salida muy estable!

Just make sure to rotate the potentiometer before powering on. If you do that, then they work flawlessly! Great product, consistent and well built.

It really works, it's very interesting. Good to power basic electronics such as fans. Do not use it with sensitive electronics, these devices tend to create interference and undesirable spikes, not suited for sensitive components such as amplificators or any audio equipment. Beware to use a potentiometer when pairing something with it, you surely don't want to fry something.