Alkaline GP Ultra + C R14 battery (1.5V voltage) 1 piece. Weight 60g

Step-down voltage regulator module based on the APM81815 providing a fixed 3.3 V output at up to 1.1 A with an input voltage range of 5 - 72 V. Pololu 5266

Step-down voltage regulator module based on the APM81815 providing a fixed 5 V output at up to 1.1 A with an input voltage range of 5.05 - 72 V. Pololu 5267

Step-down voltage regulator module based on the APM81815 providing a fixed 5.35 V output at up to 1.1 A with an input voltage range of 5.4 - 72 V. Pololu 5268

Splitter POE 12V / 2A ideal for powering CCTV cameras and network equipment. The converter allows you to supply devices with 12 V voltage using energy transferred via Ethernet network using Power Over Ethernet technology (PoE IEEE802.3 AF / AT). The adapter also allows you to connect to the ethernet network at a speed of 10 / 100Mbit. Model Hi-P05-B

Module based on the TPS2116 enabling automatic switching between two 1.6 - 5.5 V power sources with output through a USB Type-C connector, with USB priority, supporting up to 2.5 A continuous current and reverse current blocking. In priority mode, it prefers USB power with the option to switch between VIN1 and VIN2 by control signal. Pololu 3728

Module with a single-purpose LiPo charger with adjustable charging current in the range from 15 to 500 mA. It is equipped with a JST PH connector, pins and a 2450 type socket. SparkFun PRT-14380

Water Turbine Generator is a water turbine that generates electricity. 5V output voltage on the turbine is achieved at a flow of 4l / min. DFRobot SEN0229

Switched-mode AC Power supply 12V/2A with DC 5.5x2.1 connector and EU plug. It has anti-overload, anti-overvoltage, short circuit protection. Conform to the norm Energy efficiency Level V. Length of output cable is 1.2m

Miniature 3.3 V switching voltage regulator based on the AP63200 converter, input range 3.5 – 32 V, output current up to 1 A (1.5 A peak), efficiency up to 90%, dimensions 18 x 11 mm. KAmod-DCDC-AP63200 3.3V

Miniature 5 V switching voltage regulator based on the AP63200 IC, input range 3.5 – 32 V, output current up to 1 A (1.5 A peak), efficiency up to 90%, dimensions 18 x 11 mm. KAmod-DCDC-AP63200 5V

This synchronous switching step-down (or buck) regulator takes an input voltage of up to 40 V and efficiently reduces it to 6 V with an available output current of around 15 A. Pololu 2882

The Step-Up Buck Voltage Regulator module with output voltage of 3.3V and input voltage range of 1-3V and a maximum output current of 200 mA. STMicroelectronics EVAL4971

DC-DC step-up/step-down voltage regulator module with an adjustable output voltage range of 9 V – 30 V and an input voltage range of 2.9 V – 32 V. The circuit automatically boosts or lowers the input voltage, allowing it to power devices even when the supply voltage fluctuates significantly. The regulator can deliver up to 2 A output current, with a typical efficiency of 80–90%, and features an ENABLE pin for low-power operation. Pololu 2573

This synchronous switching step-down (or buck) regulator takes an input voltage of up to 40 V and efficiently reduces it to 3.3 V with an available output current of around 15 A. Pololu 2880

This synchronous switching step-down (or buck) regulator takes an input voltage of up to 40V and efficiently reduces it to 5V with an available output current of around 15A. Typical efficiencies of 80% to 95% along with its high current capabilities make this regulator well suited for powering large loads. Pololu 2881

Step-Down DC-DC converter module based on the D24V150F7 chip. Input voltage 9..40V, output voltage 7.5V (max 15A). Pololu 2883

This powerful step-up/step-down regulator efficiently produces an adjustable 4 V to 12 V output from input voltages between 3 V and 30 V while allowing a typical output current of up to 2 A when the input voltage is close to the output voltage and offering typical efficiencies of 80% to 90%.

Charger module designed for single-cell 3.7 V Li-Ion and Li-Po batteries, using the CC/CV charging method. It features a USB Type-C connector, a JST-PH 2 mm battery connector, and two LEDs indicating the charging status. Soldered 333013

The very small step-down 6 V, 2.5 A synchronous inverter can be supplied with voltage up to 36 V, dimensions: 17.8 mm x 17.8 mm. Pololu 2859