DROK 5V DC Converter, 2pcs Waterproof DC Buck Converter 8V-22V 12 V Step Down to 3V-15V 6V 9V 3A Adjustable Power Supply Voltage Regulator Module...

I have a car rental business and the wires for the tracker kept blowing out. This stabilized it to where it doesnt blow out anymore. I would highly recommend it.

I used this product 1 time and the smoke came out I threw it away. Very disappointing.

When I 1st powered this up it was railed high. With 12v in it had 11.18 v out. I turned the adjustment pot counter clockwise (a lot) with no change. Seemed dead on arrival. I turned the adj. pot clockwise and it (eventually) began to change the output voltage. I set the voltage to 6.5 volts (what I need for my application). I then applied a variety of loads. The next time I powered it up it was at 6.66 volts. I couldnt figure out why it shifted. Perhaps my setting pot was dirty? I went on test how efficient it was. With a 12v supply and no load it draws just 1.7 mA. As I increase the load to 1.3 Amps the output voltage dropped just 0.03 v, and its efficiency ranged from 85% to 93%. Those are very impressive numbers for an inexpensive stand alone power supply. I still havent pinned down the voltage shift. I let it sit for a couple of days, and the voltage remained constant. I changed the set point back to 6.5 volts and it seems to be staying constant. I dont know what other say about the problem of the output voltage moving around, but it seems to have gone away. It is installed and working fine.

Ive been happy with other Drok products that I bought in the past. I bought this voltage converter to set up low beam/high beam functionality for the auxiliary LED lights on my dirt bike, after a previous hi/lo module failed. You need to use a 15 amp or 30 amp SPDT relay with this manual set-up. I used a 30 amp that I already had in my supplies. You wire the relay with NC powering the low beam through the voltage converter and NO powering the high beam at a full 12V, with the relay triggered by the high beam wire. The amperage rating on this unit is way overkill for a 3 amp circuit, but I wanted a rugged solution that wouldnt burn out on the trail again. I set the low beam voltage to 8V with the engine running, but you can also ignore the voltage and adjust simply by light output level instead. Installation was straight forward. Note that the input ground was connected to a chassis ground and the output ground went to the lights. Relay ground goes to chassis as well. I fabricated a mounting bracket to the upper fork triple tree for a rugged mount and everything worked perfectly out of the box. Am very happy!

Ive been happy with other Drok products that I bought in the past. I bought this voltage converter to set up low beam/high beam functionality for the auxiliary LED lights on my dirt bike, after a previous hi/lo module failed. You need to use a 15 amp or 30 amp SPDT relay with this manual set-up. I used a 30 amp that I already had in my supplies. You wire the relay with NC powering the low beam through the voltage converter and NO powering the high beam at a full 12V, with the relay triggered by the high beam wire. The amperage rating on this unit is way overkill for a 3 amp circuit, but I wanted a rugged solution that wouldnt burn out on the trail again. I set the low beam voltage to 8V with the engine running, but you can also ignore the voltage and adjust simply by light output level instead. Installation was straight forward. Note that the input ground was connected to a chassis ground and the output ground went to the lights. Relay ground goes to chassis as well. I fabricated a mounting bracket to the upper fork triple tree for a rugged mount and everything worked perfectly out of the box. Am very happy!