MP2307DN Mini-360 ultra-small size DC-DC synchronous rectifier buck module. 5x MP2307DN DC-DC Buck converter. Load regulation: ±0.5%.
eBay
Voltage Regulator Power Supply Module Adjustable Step-Down LM2596 DC-DC Buck Converter 7V-35V To 1.25V-30V Step Down Module
Aliexpress UK
Perfectly compatible with Dewalt 20V/18V Lithium-ion DCB battery series, work with for DCB182, DCB183, DCB184, DCB185, DCB200, DCB201, DCB203, DCB204, DCB205, DCB206, DCB208 and more. In addition, the adapter housing is made of high quality ABS.
eBay
24V to 12V 5A DC Converter Voltage Reducer Regulator Step Down Buck Converter converter 24V to 5V Volt Transformer Module
Aliexpress UK
The maximum power used by the appliance is 200W. Do not use it with high powered appliances such as hair dryers, electric iron etc. Waveform Distortion: <0.1%. ▶ Ideal for fax machine, fan, air machine, computer, water dispenser, phone/tablet etc.
eBay
24V to 12V Converter Step Down 24V 12V Waterproof Module DC DC 1A-5A Buck Model Converter DC 24V to DC 12V Voltage Regulator
Aliexpress UK
Specifications(3000W). Rated Power: 3000W. Specifications(2000W). Rated Power: 2000W. Material: Cast Iron. Operational Temp. Range: -5 to 40°C (23 to 104°F). Current: 13.6A.
eBay
DC Voltage Regulator DC 12V 24V to DC 5V 3A 5A 10A 15A Buck Converter Step Down Reducer Power Converter Mini Module Transformer
Aliexpress UK
Support max up to 200W output power. Output Power: 200W. Ideal for fax machine, fan, air machine, computer, water dispenser, phone/tablet etc. Plug Type: UK Plug. 3-pin UK plug design. Do not use it with high powered appliances such as hair dryers, electric iron etc.
eBay
1-10PCS LM2596 DC-DC Buck Converter Voltage Regulator 3.2V-46V to 1.25V-35V Buck Converter Power Supply Step Down Module
Aliexpress UK
LM2596HV AC/DC to DC Buck Step Down Converter Module 5V-45V to 3.3 -33V Adjustable. DC 5V - 45V. The external heat sink can withstand high current operation. which is commonly used for AC and DC input.
eBay
12V To 3.3V 4.2V 5V 6V 7.5V 2.5A 9V 1A DC To DC Converter Power Supply Voltage Converter Non isolated Buck Step-Down Module
Aliexpress UK
For 40A 480W. Output Rated Power: 480W. Output Current: 40A(MAX). Efficiency: 97% (half load); 95% (full load). Output Current: 30 A(MAX). Output Current: 20A(MAX). Output Rated Power: 36 0W.
eBay
24V to 12V 10A Converter DC DC Buck Converter Step Down 18V~35Vto12V 5A Voltage Reducer Waterproof Module Transformer (10A 120W)
Aliexpress UK
24V-12V 4.5a DC-DC Converter for vehicles with 24V systems when you want to add 12V accessories.
eBay
12V To 3V 3.3V 3.7V 5V 6V 9V 3A DC To DC Converter Power Supply Voltage Converter Buck Step-Down Module 12v24 to 5vV For Car
Aliexpress UK