Switch-mode power supply for LED lighting with an output voltage of 12 V and a current of up to 4.2 A, protection class IP20. Akyga AK-L1-050

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.

Step-Down DC-DC converter module based on the D24V150F12 chip. Input voltage 14.5 ... 40V, output voltage 12V (max 15A). Pololu 2885

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

Power supply module with an input voltage from 4 to 9 V and a configurable output voltage of 3.3 V or 1.8 V. It has holes with a 2.54 mm pitch. Perfect for use with a contact plate. SparkFun PRT-13157

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

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

Battery capacity tester with white LCD display. It can work with lithium and lead-acid batteries

Protection circuit for four Li-Ion cells with a voltage of 14.8V. The module has the function of charging cells with the option of a balancer, discharging and a function that protects the cells from excessive discharge. The cells can be charged with continuous current up to 10A

The active PoE 5V / 2.4A Type-C splitter allows you to supply devices with 5 V (USB Type-C) voltage using energy transmitted via an Ethernet network using Power Over Ethernet (PoE) technology. The adapter also allows network connectivity at 10 / 100Mbit.

Li-Po battery with a rated voltage of 3.7 V and a capacity of 150 mAh, equipped with a PCM protection and a 2.5 JST-RCY connector. Akyga LP402025

DC-DC Step-Down converter module AP63203 with an output voltage of 3.3 V, an input voltage of 3.8 to 32 V and a maximum output current of 2 A. SparkFun COM-18356

Switching modular power supply for LED, supply voltage 100-265V, output voltage 12V, IP67 enclosure tightness class. Akyga AK-L2-100

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

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

The shunt regulator with a constant voltage of 26.4V, 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 3774

Shunt regulator with a constant voltage of 13.2V, bypass resistance 1.5Ohm and a total of 32 SMT bypass resistors on both sides of the PCB with the possibility of adding an external potentiometer to adjust the preset voltage. Pololu 3771

The Akyga Basic series power supply is one of the basic power supplies designed for powering desktops. Compliant with ATX 2.31 standard, 500W power. Akyga AK-B1-500

Flexible solar panel with an output voltage of 6 V and a current capacity of 1 A. It has dimensions of 280 x 155 mm and a USB port