Features Versatile Power Supply: Compatible with 3.3V or 5V systems, allowing for direct power connection or microcontroller control without extra drivers Efficient Control System: Features high level on and low level off functionality, with PWM dimming for precise lighting adjustments and energy efficiency Wide Application Range: Perfect for various uses, including MCU control, indicator lights, and decorative lighting, enhancing the aesthetic appeal of any space Comprehensive Set of 10: Includes 10 LED chip bulbs for flexible combinations, enabling customized lighting effects to suit your decorative needs Quick and Simple Installation: Compact and lightweight design allows for effortless setup in just minutes, making it ideal for all skill levels Features: 1、The Power Supply: Can be used for various 3.3V or 5V single chip microcomputer to control lighting through wire connection, no additional drive required, and can also light up with direct power supply. 2、Simple Control: High level on and low level off. The dimming can be controlled by PWM, making the simple and efficient. 3、Broad Utility: Allows for wide application on MCU control, indicator light, lamp tube and so on, and the pretty lighting enables good decoration. 4、10Pcs in Total: There are 10pcs LED chip bulb in the set, and the LED module can be flexibly combination for better lighting effects. 5、Easy to Install: Comes with a compact size and a light weight as well, the convenient installation can be quickly completed in minutes. Specification: Item Type: LED Module Plate Size: Approx. 20 x 20mm / 0.79 x 0.79in Supply Voltage: 3.3V-5V Operating Temperature: -40℃ ~ 85℃ Nature of Work: LED Drive Software Interface: Digital TTL Level Package List: 10 x LED Module Package List 10 x LED Module