The maximum output current can attain 8A, need fan if over 5A. When maximum output current 8A, need to add fan. The power module has powerful protection functions, including over-current protection and short-circuit protection.
eBay
300W 20A DC-DC Buck Converter Step Down Module Constant Current LED Driver Power Step Down Voltage Module
Aliexpress UK
There are a total of four outputs on the front panel. two designated for 110 volts with a US standard outlet, the other two for 240 volts with a UK outlet. And most importantly, all four outputs can be used simultaneously & continuously.
eBay
Buck Converter DC-DC 12-100V TO 5V 12V Buck Regulator Step-Down Power Supply Module 3A Low Ripple Voltage Step Down Board
Aliexpress UK
DC36V/48V To DC24V 20A 480W Step-Down Power Supply Converter Regulator Module Feature: 100% brand new and high quality. Waterproof, Shockproof Design. Aluminum Outer Case material, long term stable and reliable. Thin, small size, high efficiency and easy to install. Purpose : Car alarms, radio, intercom, electric motors, audio, navigation, surveillance, LED car display, air conditioning, fans,solar energy, DVD, LED lights, motors, pumps, and industrial electrical equipment, etc. Input wire color : (+)Red, (-)Black. Output wire color: (+)Yellow, (-)Black. Note: Please be remind to make sure wiring carefully & correctly. No wiring reverse short-circuit protection for this device. .
eBay
DC-DC Step-down Module Digital Voltmeter Adjustable Voltage Regulator Step Down Stabilized Power Supply Module Buck Converter
Aliexpress UK
24V-12V 4.5a DC-DC Converter for vehicles with 24V systems when you want to add 12V accessories.
eBay
300W 20A DC-DC Buck Converter Step Down Module Constant Current LED Driver Power Step Down Voltage Module Electrolytic Capacitor
Aliexpress UK
Output power: 75W. Clockwise increases, anticlockwise decreases. This is a step-down converter. LED power indicator.
eBay
DC DC Buck Converter Step Down Module 300W 20A DC-DC Constant Current LED Driver CC CV Adjustable Power Step Down Voltage Board
Aliexpress UK
DC-DC 36V/48V TO 12V 10A - MODEL: JZL48210. Make sure the battery capacity is large enough to provide sufficient energy. Make sure all positive and negative connections are correct (do not reverse, reverse the burn back converter), turn on the power and load switch.
eBay
300W 20A DC-DC Buck Converter Step Down Module Constant Current LED Driver Power Step Down Voltage Module Electrolytic Capacitor
Aliexpress UK
110V ↔ 240V. Safety Protected – Overload & thermal cut-off, replaceable fuse, copper coil. ⚠️ Important Note: Do NOT exceed 500W continuous load. Step Down: 230V / 240V → 110V. Step Down mode (240V → 110V): Set switch to "230V" – outputs 110V from UK mains.
eBay
LM2596 DC-DC Step Down Converter Module 3A adjustable step down module LM2596S-ADJ voltage regulator 24V 12V 5V 3V LM2596S
Aliexpress UK
Peak Power : 5000W. Rated Power : 3000W. There are a total of six outputs on the front panel. three designated for 110 volts with a US standard outlet, the other two for 240 volts with UK outlet and one for 240 volts with Universal outlet.
eBay
300W 20A DC-DC Buck Converter Step Down Module Constant Current LED Driver Power Step Down Voltage Module Electrolytic Capacitor
Aliexpress UK