The VAM28 dual LED voltmeter and ammeter measures DC voltage (0–100V) and current (1–10A) with bright red and blue displays. Operating at 5V DC with low power consumption (<60mA), it provides accurate real-time monitoring for DIY electronics, power supplies, battery systems, and testing projects.

This 5mm LDR (Light Dependent Resistor) offers variable resistance based on light intensity, ranging from 10kΩ in light to 1MΩ in darkness. With a maximum voltage of 150V and power rating of 100mW, it’s ideal for automatic lighting, sensors, and electronic control projects.

The LM2596 DC-DC Step-Down Power Supply Module efficiently converts 4.75–35V input into an adjustable 1.25–26V output. With up to 92% conversion efficiency, 3A load capacity, and built-in short-circuit protection, it is perfect for stable power regulation in DIY electronics and embedded projects.

The XL6009 DC-DC Step-Up Booster Module converts 3V–32V input into a stable 5V–35V output. Featuring up to 94% efficiency, a 4A MOSFET switch, and a 400kHz switching frequency, it provides reliable, ripple-free voltage regulation for DIY electronics, robotics, and power supply projects.

The AA313 Power Bank DIY Module efficiently converts 3.7V–4.2V lithium battery input into a stable 5V output with dual USB ports. It features LED power indicators, auto-shutdown, and built-in protection against overcharge, over-discharge, and short circuits, ensuring safe charging for multiple devices.

The NA66 400W DC-DC Step-Up Converter delivers adjustable 10V–60V output from an 8.5V–50V input, supporting up to 15A current. With screw terminal connections, constant voltage regulation, and durable construction, it ensures stable power for high-demand electronics, DIY projects, and industrial equipment.

The VM870 LCD Battery Capacity Indicator Voltmeter supports 8–70V lead-acid and 2S–6S lithium batteries. Featuring a green backlit LCD, dual display modes, low power consumption, reverse polarity protection, and multifunctional keys, it ensures precise monitoring of voltage and battery levels in diverse applications.

The TP4056C 1A LiPo Battery Charging Board with Type-C port offers efficient charging with built-in current protection. Featuring a red/green LED indicator, it ensures safe charging using the TP4056 chip, providing high accuracy, strong protection performance, and compact design for various lithium battery applications.

The AA314 USB 5V 2.4A LED Dual Micro/Type-C module for 18650 cells offers safe portable power. It supports multiple charging cables, features overcharge, overdischarge, and short-circuit protection, and delivers 5V/2.4A output. Compact design with LED display makes it ideal for DIY power banks.

The AA315 3-USB Power Bank Charging Board is designed for DIY lithium battery power banks. It offers 5V output with up to 2A current, 1A charging input, and LED indicators for charge status. Features built-in protections for over-voltage, short-circuit, overload, and efficient discharge operation.

The NA459 5V 2A Wireless Charging Module (XKT-412) provides efficient wireless power transfer with a 12V input and 5V output. Supporting up to 2A operating current, it delivers stable charging within 2–10mm distance, making it ideal for compact, cordless charging applications.

The TESLA Mini Tesla Coil Kit (9V–12V) is a DIY prototyping kit designed for learning and experimentation. It demonstrates wireless power transfer, high-frequency resonance, and electrical principles, making it ideal for electronics enthusiasts, students, and hobbyists interested in hands-on science projects.