2Pcs 400W 15A DC-DC Boost Converter Step Up Module, DC 8.5V-50V to DC10V-60V Constant Current Power Supply Module Voltage Regulator Constant Power Heat Sink Adjustable Module for Electric Product

Ya he ordenado anteriormente este producto que me a resultado muy bueno en mis trabajos electrónicos.

I bought these to drive some super bright LED COB's. They work fine for that purpose, and I significantly overspec'd the wattage, so they don't even get warm. Can't comment on reliability or longevity yet.One note: the voltage potentiometer is the one nearest to the positive output. You'll see there's a marking "CV ADJ" nearby on the silk screen. Turning the pot counterclockwise makes the voltage go up, and clockwise will lower it (until it matches the input voltage). The other pot is labeled "CC ADJ" and turning it clockwise will increase the max current, and counterclockwise will decrease it. This is the reverse of how the other potentiometer behaves! Both pots have many, many turns to them, and when you hit the limit, you'll hear it make a gentle click.

The part was fed 12V and output was ajusted to an open circuit 24 volts. The output voltage dropped to 6.5 volts with a small load. The small load consumed 1.2A @24V when directly connected to my power source. After on for 20 seconds, one of the heat sink got so hot I almost got burned accidently touching it. It got so hot the coating on the circuit board melted.I thought I got a bad unit, but the 2nd unit behaved the same.