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CN3903 3A Mini DC-DC Buck Step Down Converter Board Module 5V-30V to 3.3V 5V DC DC Voltage Regulator PCB Board Power Buck Module
Aliexpress UK
When the "OUT" indicator on the right is on, the output is displayed, and the "input" LED input is displayed on the left side. Output current: 2A. Built in output short for protection function. Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
35W/80W DC DC Buck Boost Converter CC CV Adjustable DC Voltage Regulator Power Supply Step Down Stabilized Module 6-36V 5-30V
Aliexpress UK
Perfectly compatible with Makita 18V Lit-ion Battery, works with BL1820 BL1840B BL1820B BL1815B BL1835 LXT-400 BL1845B BL1845 194205-3 194204-5 BL1830B BL1850B BL1860 etc. 【Compatibile for Makita 18V Battery】.
eBay
24V 36V 48V 60V 72V 18-90V to 12V 10A 20A 30A 40A DC DC Converter Step Down Voltage Regulator Transformer Car Power Supply
Aliexpress UK
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. Specification: .
eBay
36V 48V 60V 72V 30-90V to 24V 5A 10A 15A 20A DC DC Converter Step Down Voltage Regulator Transformer Bus Truck Car Power Supply
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.
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10W 15W 24W 12V to 5V 2A 3A DC-DC Step Down Buck Converter Power Supply Module Mini USB Micro USB Male Female Type-C Adapter
Aliexpress UK
Compared with the commonly used 7015 module in the market, the power is much larger. Maximum peak 1.5A. Otherwise deal is final. All products are quality checked. We will be happy to resolve any issues you may have in a cordial and friendly manner.
eBay
10pcs/1pc DC-DC Buck Power Supply Module Adjustable Step Down Converter Board 5V-30V To 3.3V 4.2V 5V 9V 12V 3A for Car Charging
Aliexpress UK
Output curret: 2A. 1x Power Converter. Output wire color : (+)Yellow, (-)Black. Output power:12W. Input wire color : (+)Red, (-)Black. No wiring reverse short-circuit protection for this device. Thin, small size, high efficiency and easy to install.
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Hi-Link AC-DC converter 5W AC 220V to DC 5V 5M03 HLK-5M05 1A isolated switching step-down power supply module Original AC-DC
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. (Battery is not included.).
eBay
1/5/10pcs LM2596 DC to DC Buck Converter 3.0-40V to 1.5-35V Power Supply Step Down Module
Aliexpress UK