Load Current: 3A. On-State Resistance (Max): -.
eBay
1-10PCS MT3608 Boost Module DC-DC Step Up Converter Booster Power Supply Module Board 2A Max 2V-24V To 5/9/12/28V for Arduino
Aliexpress UK
Load Current: 8A. Output Type: AC Zero Cross. On-State Resistance (Max): -.
eBay
DC-DC Step Down Board 7V-100V High Efficiency Buck Converter Power Supply Module with shutdown function 5V/9V/12V/24V Output
Aliexpress UK
SIMPLE DESIGN: This solid state relay is compact in size and simple in design, maximize simplification, convenient to use. Load Current: 25A. EXCELLENT PERFORMANCE: The SSR features fast switching speed and low electromagnetic interference.
eBay
5A MPPT Solar Panel Controller DC-DC Step-down CC/CV Charging Module with blue Display LED Regulator Controllers
Aliexpress UK
Choose a correct current.
eBay
10A DC-DC 4-32V to 1.2-32V Step Down Module Solar Charger Constant Voltage Current Adjustable Buck Converter LED Driver
Aliexpress UK
1 Solid State Relay Module. - Load current: 40A. - color: grey. Due to various factors such as display brightness and light brightness, the actual color of the product may be slightly different from the website picture.
eBay
2/5pcs Mini360 DC-DC HM Buck Converter Step Down Power Supply Module 4.75-23V to 1-17V 340KHz Mini-360 Ultra-small
Aliexpress UK
Load current: 25A. Aluminum heat-dissipating substrate, fast heat dissipation. Item type: DC-DC solid state relay. With LED working status indicator. Work indicator: LED. Insulation resistance: 500MΩ/ 500VDC.
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Usb Power Boost Line Dc 5v To Dc 9v / 12v Step Up Module 1M Usb Converter Adapter Cable 2.1x5.5mm Plug for arduino WIFI
Aliexpress UK
With thickened heat sink base, durable and long service life. Item Type: Solid State Relay. Rated AC Current: 10A / 25A / 40A (optional for corresponding models). High brightness with red and green indicators, simple to operate.
eBay
3.7V 4.2V Charger PLR 5V 6V 9V 12V Discharger Board DC DC Converter Boost Module for diy UPS mobile power 18650 lithium battery
Aliexpress UK
eBay
10A DC-DC 4-32V to 1.2-32V Step Down Module Solar Charger Constant Voltage Current Adjustable Buck Converter LED Driver
Aliexpress UK