Adjustable Current LED Driver, DC 3.3V 3.7V 5V LED Driver 30-1500mA Constant Current Adjustable Module for LED Li-ion

COoL little (TINY!!) board. I haven't seen anything this small since I stepped out of the shower dripping wet. Just saying¯\_(ツ)_/¯ Would buy again.p.s. Amazon's shipping (pkging) is becoming sHoCkLiNg bad. Sorry Jeff, it had to be said.

Seems to work OK w/ my hour or so of testing of two 1W LEDs in parallel running at medium-high power. Very gradual adjustment on the POT, which is nice. Unit gets HOT. We're talking over 200F. I soldered two bits of solid copper wire to the back to help spread out the heat.Pin layout could be better. Not sure why I need to give it positive, and jumper it for power in, and only get one shared ground out. A revised design with pads for + and - in and + and - out would make soldering to this board easier, with more room for leads and a cleaner look, or just three pins total. Maybe there's something I'm missing here.If it lasts, I'll buy more :)

Tiny circuit board. Not what I expected.

I am a beginner when it comes to electronic circuits but I greatly enjoy learning about making different projects. This LED adjustable driver works perfectly for whatever your project may be. It was fairly simple to figure out. I used it with an Arduino UNO which worked perfectly in my project. The only confusing part was how the description says 3.3V/3.7V or 5V but the instructions on down the page say input is 2.8-6V. Still very easy to use.

As advertised

This Adjustable Led driver worked for my needs. I used this Led driver on a short 4" piece of 5v 4000k Cob led strip. I mounted the strip on the back side of my TG-16 logo after cutting out a window on the plastic console case, that turns on with power switch for power on indicator. I used the source power of 5v 1 amp off of a 5v regulator on my Turbografx-16. Connections - V1 5v in & with a jumper wire to CE, G Ground in from source and shared Led ground wire, Led for positive Led. Be very careful when adjusting the current adjustment screw. It does not fully rotate all the way around. It has less than 300° of back and fourth rotation. If you over rotate it it will break and you will loose adjustability, I found out the hard way. It works well and dims and brightens my small led strip for my TG-16 power logo light. Draws approximately 300MA. Worth it for my needs. Temporary mounting in progress, & Will clean up nice when finished. Recommend for small led projects and very small footprint for limited space just be careful with adjustment screw.

This star rating is not about the functioning of the product but about the quality of the documentation.I tried to control an IR LED with this board. To do this, I wanted to use the adjustable resistance to set the current and the CE through PWM to control the pulse.The good:The pad placement on the PCB is the correct pitch for stake pins, so I was able to solder a header and attach wires into themThe bad:The "adjustment" has to be made with a flat screw driver of blade size that is very specific. The blade edge has to be under 0.8 mm thick and the blade width must be within a certain size tolerance to be able to grip this head. It would be helpful if this specification is posted. Note that a smaller blade width will just rotate inside the circular cavity and a larger blade width will not get into the slot. A Phillips head will not work because there is no depth for the tip.There is a frequency limit on the PWM of < 2KHz. IR pulse rate is just about this frequency but I was unable to get any output from the LED (which I have driven with a different circuit and the same input). I suspect that this driver is not fast enough for this particular function.So, I am unable to verify the functionality of the device outside my own requirements. It may work just fine for other needs.