PAM8403 5V 3W+3W Stereo Audio Amplifier Module is a compact and efficient Class-D amplifier featuring dual-channel 3W+3W output, 2.5V–5.5V operation, up to 87% efficiency, low noise, and built-in short-circuit and thermal protection. It is ideal for Arduino, ESP32, Raspberry Pi, Bluetooth speakers, robotics, gaming, and portable audio projects.

Long Range Li-Fi Data Transfer Module is a visible light communication system designed for wireless serial data transmission using LED light. Supporting 9600 bps communication and 8–10 feet range, with adjustable receiver sensitivity, it is ideal for robotics, IoT, indoor navigation, RF-sensitive environments, educational projects, and optical communication experiments.

MX1919 Based Motor Driver Module is a compact dual H-bridge controller supporting up to 2.5A peak current, 2–10V DC operation, and 1.8V/3.3V/5V logic compatibility. It can control two DC motors or one 4-wire stepper motor, making it ideal for Arduino, ESP32, Raspberry Pi, micro-mouse, line-following, robotic, and DIY projects.

The 20A 300W High-Power DC-DC Buck Converter is a heavy-duty step-down module with adjustable Constant Voltage (CV) and Constant Current (CC) control. It supports 6V–40V input, 1.2V–36V output, and up to 20A current, with efficiency up to 97%. Ideal for battery charging, high-power LED driving, solar systems, vehicle electronics, and adjustable power supplies.