Features 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 Buck Converter Voltage Step Down Module DC 7.5V-60V to 6V/7.4V/8.4V 5A Stabilized DC Power Supply Module
Aliexpress UK
1x Power Converter. Output range: 150K. Output wire color: (+)Yellow, (-)Black. Output power:300W. Input wire color : (+)Red, (-)Black. No wiring reverse short-circuit protection for this device. Output current:25A.
eBay
DC 5-30V 5A Buck Converter Output 3.3V/5V/8.4V High-Current DC Synchronous Buck Module DC-DC Step-Down Module
Aliexpress UK
HIGH EFFICIENCY: The DC module has a high power output of 480W 40A, with high conversion efficiency, and strong practicality. Item Type: DC Module. IP67 PROTECTION: The module adopts fully sealed shell as the heat sink, with IP67 protection grade, shockproof, dustproof, and waterproof.
eBay
CN3903 3A Mini DC-DC Buck Step Down Converter Board PLR 5V-30V to 3.3V 5V DC DC Voltage Regulator PCB Board Power Buck Module
Aliexpress UK
eBay
1PCS/10PCS 3A Mini DC-DC Buck Step Down Converter Board Module 5V-30V to 3.3V 5V DC DC Voltage Regulator Board Power Buck Module
Aliexpress UK
eBay
XH-M411 DC 3V-35V To DC 5V-45V Boost Module Digital Voltmeter DC-DC Step Up Module Boost Converter Board 5A Power Adjustable
Aliexpress UK
Style 24V to 12V 5A. Colour 24V to 12V 5A. Size DC 24V to 12V 5A. Output Current: 5A. Mounting type Rack Mount. The compact and lightweight design of this power converter makes it easy to carry and install, making it ideal for use in a variety of applications.
eBay
500W 18A DC-DC Buck Converter Step Down Power Supply Module Constant Voltage/Current DC 12-95V to DC 1.5-90V Voltage Regulator
Aliexpress UK
Output current: 25A. Internal circuit board is made with superior electronic components to ensure stable and high efficiency output. 1 DC Converter. Output Power: 300W. Output ripple noise: 1db. Yellow wire: Output +.
eBay
24V to 12V 5A DC Converter Voltage Reducer Regulator Step Down Buck Converter converter 24V to 5V Volt Transformer Module
Aliexpress UK
Output current: 20A (max), 480W. 1x 12V to 24V DC Converter. More than 90% power conversion efficiency. 100% Waterproof with Anti-shock protection. Light weight and ultra-compact size.
eBay
Isolation type 9V-36V to 12V power converter 12V/24V to 12V voltage regulator 36V 48V 60V 72V 96V 120V to 12V voltage regulator
Aliexpress UK