DC Converter Regulator 36V 48V Step Down to 12V 30A 360W, Waterproof Big-Size Voltage Reducer, High-Power Power Supply Module Buck Transformer, for Golf Cart, forklifts, Car

Repairing electric golf cart for customer who indicated they want to run 12vdc party lights on cart. This dc/dc converter was the perfect choice for establishing 12vdc current from the carts 48vdc system. However I discovered during install when hooked directly to cart batteries, with main and tow switches turned off, that this unit is still drawing current which would've killed the carts batteries in short period of time. I've since ordered and will install a 48vdc/40amp automotive relay to use trigger power from tow switch to activate mechanical contact which will then complete the circuit and turn on/off this dc/dc convertor. As the tow switch must be turned on to operate the main key switch, it just makes sense to use this as the source power to trigger the relay. These golf carts already have a 20amp dc/dc converter from the factory to power the headlights and taillights but not much more. The additional 30amp dc/dc converter I'm adding will allow the customer to add extra 12vdc accessories of their choosing without interfering with the carts OEM system.

Had a 36 volt battery and wanted the ability to use it on my 12 volt trolling motor, hooked it up ran the motor for a few hours, no problems. Happy with the purchase. It's water proof and fits in your hand. I hear it uses very little power when hooked up and not being used, but it would be recommended to disconnect it from the battery for prolonged storage. Or put a switch in between.

I mounted this on a 2006 EZGO to run offroad LED lights and stereo. I'm very pleased with its performance so far. It seems to handle a 20 inch light bar and smaller 8 inch lights no problem. I use the smaller lights for low beams and the lightbar for high beams. I did have issues with the stereo wanting to work at first which worked fine hooked directly to 12 volt source. After hitting the reset button on stereo a few times it works fine with no issues. I did wire the stereo constant hot to a constant 12 volt source to keep the clock and presets and that may have also helped with the stereo no wanting to work right. I think a lot of the issues people may be having with this item is hooking it up to a hot power source. I recommend wiring in before putting power to it and also mounting a kill switch so you can turn it off when not using cart. I would think leaving it powered 24-7 will shorten its life span.

Easy to install. The value is perfect. Functional with good build quality. The lights installed on my golf cart work perfect and are bright with no issues.

When I was searching for a 48V to 12V converter, I would have liked to know the idle current drawn by the product under no load conditions. Unfortunately, this spec is missing not only with this product but also with all of the competitor products I looked at. Since the spec is missing, I see that several people are going to the trouble of installing an external relay to completely disconnect the unit when not in use. So, to help others coming after me, here are the numbers. I measure 13.5 mA of current drawn from a 48 volt battery under zero load conditions. With a lithium 100Ah battery in my golf cart, that means that the converter would fully discharge the battery after 7400 hours. That's 308 days, so since I'm not planning to put my vehicle in long term storage, I won't be spending the time and money on an external disconnect relay.

I used this on my 36-volt golf cart where I wanted to add 12-volt LED lighting. I could have just wired across two of the six-volt batteries to get the correct voltage. But that is not the right way to do it. I expect to eventually use the output of this to power a car stereo in the golf cart.Worked well with stable output.

Voltage output on a 36 volt system was only 12.2 volts. I would think It should be around 13.2 volts, which is what my 48 to 12 volt convertor puts out.

I used this to step down the voltage to run rear lights and other 12v accessories in my 48v system. So far so good. Very happy with my purchase.

very good product put it on a Yamaha golf cart bought the 30 amp so can run a sprayer when using it for yard work

Al conectarlo hizo corto y fundió uno de los tornillos. Pésima calidad