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

Easy product to use. The potentiometer for manually adjusting brightness is easy to break if your not careful and use a proper size screwdriver for adjusting it, about a 1/4 of a turn is the adjustment range. Quality is great, I'm using my driver at it's full power rating for extended periods of time, +10 minutes or longer. I've added a heat sink and small fan to keep the driver protected. The price was very reasonable for 3 drivers. I use the digital method for dimming. Overall functionality is great.

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.

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.

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.

As advertised

These are fine for driving chip LEDs for small projects. You do have to be a little careful in the design on the intended use. For example, when I used these with a current adjustment down to about 100 mA or so with a 6VC supply they got really hot. Worried about the heat (using in a 3D printed part in PLA part that melted), you really can't use them with an input voltage above about 5VDC. They have a stable output current and are really simple to use.