Switching power supply with a power of 50 W, output voltage of 12 V and current of 4.2 A. It has built-in overload and short-circuit protection and a low profile design. Mean Well LRS-50-12

DC-DC Step-Down Converter ME3116AM6G with an output voltage of 5 V, input voltage from 6 to 24 V and a maximum output current of 1 A. Dedicated to the M5Stack modules. M5Stack U125

The Step-Down D24V6F5 Buck Voltage Regulator module gives the output voltage of 5V with a wide input voltage range of 7-42V and a maximum output current of 600 mA. Pololu 2107

This small synchronous switching step-down (or buck) regulator takes an input voltage from 4 V to 36 V and efficiently reduces it to 3.3 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.6 A and features reverse voltage protection.

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 7.5 V. The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors.

MPPT charge controller module for photovoltaic systems. It supports battery charging with 12V and 3A current, it can charge Lead Acid batteries.

Shunt regulator with a constant voltage of 33V, bypass resistance 4Ohm and a total of 12 SMT shunt resistors on both sides of the PCB with the possibility of adding an external potentiometer to adjust the preset voltage. Pololu 3776

Switching power supply with a power of 150 W, an output voltage of 12 V and a current of 12.5 A. It has built-in protection against overload, overheating and short-circuit and a low profile housing. Mean Well LRS-150-12

The protection circuit for one Li-Ion cell with a voltage of 3.2 V. It has the function of charging, discharging and over-discharge protection. The module can work with a current of up to 12 A

Step-Up DC-DC converter module. It has an input voltage of 1.3 to 16 V, an output voltage of 15 V and a maximum input of up to 2 A. Pololu 4946

Step-Up DC-DC converter module. It has an input voltage of 1.3 to 16 V, an output voltage of 7.5 V and a maximum input of up to 2 A. Pololu 4943

Kit containing the Panasonic Eneloop BQ-CC55 charger and 4 Panasonic Eneloop Pro R6/AA rechargeable batteries with 2500 mAh capacity. Panasonic K-KJ55HCD40E

Switching power supply with a power of 77 W, output voltage of 24 V and current of 3.2 A. It has built-in overload and short-circuit protection and a low profile design. Mean Well LRS-75-24

Universal charger designed for 1-4S Li-Ion, LiPo, LiFe and LiHV batteries. It has a built-in AC adapter. ToolkitRC M4AC

Transmitter and receiver set enabling wireless power supply for 12V devices. Maximum charging current up to 1A.

Transmitter and receiver set enabling wireless power supply for 12V devices. Maximum charging current up to 2A.

The compact (0.4″ × 0.5″) D24V5F12 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 12 V while allowing for a maximum output current of 500 mA.

DC-DC Step-up converter module based on the U3V70F9 system. Input voltage 2.9-9V, output voltage 9V, maximum current 10A. Two mounting holes. Polol 2894

Power supply module with an input voltage from 6 to 12 V and a configurable output voltage of 3.3 V or 5 V. It has holes with a 2.54 mm pitch. Perfect for use with a breadboard. SparkFun PRT-13032