10 Pack LM2596 DC-DC Buck Converter Step Down Module Power Supply DIP Output 1.25V-30V 3A

I use these to lower voltage and power consumption from the propane solenoid switch on our camper. Lowers amp consumption from 21 amp/ day to 8, and solenoid does not get burning hot. I use 5 volts. I must have given or installed dozens of these things to camper friends.

Great product. I have purchased over 100 of these and had no DOA units. I adjust to 6V and 16V for product they are used in and they perform well in the field. I add conformal coating and silicone adhesive around the pot for extra vibration help in a rough application. I draw about 750mA max from them, average probably 350mA .

Llego muy rápido y funcionan a la perfección, muy buena atención.

Summary: - Drops 14-12v to 6.5v and holds the output at the set point across that range. - This board is cheaper than the switching voltage regulator component alone. - Can it really be an authentic LM2496S - who knows, do we care? - Basic reference circuitry with an adjustable potentiometer - right for more, left for less. -- For fixed applications (like mine) you could nuke that pot and slap in a fixed value resistor. - For low power functionality - delete the LED and 102 (1,000 Ohm) resistor. -- You'll lose the 'on' indicator LED and its companion resistor, but Ohms law doesn't lie. -- Post operation, no load power use dropped from 0.010A to 0.007A - no puns, that's a 30% improvement. - Dodging name brand over pricing. - There are probably better ways to do this, don't be hatin'. Using this device to step down 14-12v to 6.5v to power remote trail cameras with slightly more available 12v deep cycle batteries vs the 6v alternative. Testing on the bench, no-load showed this device was capable of performing as advertised. I don't have a scope so I can't comment on output noise, still chunked a MLCC (better capacitor) on flipside of the board across the existing output cap - it was 'used' so whatever, gave myself an 'E' for low-ESR. - I'll digress. Generally speaking it makes sense from a user/support perspective to go with the manufacturer 'name brand' accessories for these remote units. But I couldn't resist the penny pinching backside of mine to not go DIY on this one - and you'll see why if you choose to hang in here for another paragraph (or so). For a quantity of 10x at this time, these boards are $1.35/each - the LM2596S alone, is $2.50+ component from the component superstores mouser or digi-key. Most likely this is a ghost shift LM2596S, thank you (big semiconductor corp here) for doing business with China and/or letting the design slip, now I'm doing business with them. I only feel slightly guilty, but you're a bunch of penny pinching trolls too so don't even. Now that the ethics, China, and money bag corporation rants are set aside my fiscal justification for going this route: - OEM part (connectors, cable, regulator, and plug) cost $14.99+TAX - This part, some janky-as copper clad aluminum cable, and the wrong sized plugs resulting in a direct connect plus battery spades, cost <$3.00/each. Most likely the OEM did the same thing, but with some ill volume discounts, meaning they're taking your $12 after materials straight to the bank. Keeping my $12, doing this thing - forgot to indicate - yes the battery side will be fused, I don't need a big-as forest fire on my conscience.

I read some reviewers complain that several of the regulators they received were defective, or couldn't be adjusted. So when I received mine, I tested all 10 right away, adjusting them all down to 3.3V from a 12V input. I had one that had an extra sensitive pot and was somewhat difficult to adjust accurately, but I was able to do it, just an extra few seconds of experimenting with turns on the pot. From a 12V DC input, I had little to no trouble getting the 5V and 3.3V output supplies I was wanting. I didn't try a higher input voltage than 12V. I think some of the bad reviews are people using 20V or 24V. Maybe I got lucky and received all 10 good ones. Or maybe they don't work as well with voltages higher than 12V. But I'm happy and would buy again if needed.