Versatile Voltage Compatibility: This relay module supports multiple supply voltages including 5V, 12V, making it highly adaptable for various project requirements. Whether you're working on a simple home project or a complex industrial application, this module ensures compatibility with a wide range of power supplies. Advanced Optocoupler Isolation: Equipped with optocoupler isolation, this relay module enhances safety by preventing high voltages from affecting the low voltage side of the circuit. This feature is crucial for protecting sensitive components in your Raspberry Pi or Arduino projects, ensuring stable and reliable operation. Support for High and Low Level Trigger: The module's ability to support both high and low level triggers adds to its versatility, allowing it to be used in a broader range of applications. Whether you need to control high power loads or simple devices, this feature makes it an ideal choice for diverse electronic projects. Quality and Reliability: this brand new relay module meets strict quality standards. Its robust design is suited for demanding applications, ensuring long-term reliability and performance in your electronic projects. Description: Experience enhanced control and reliability with our 4 Channel Relay Module, designed for Arduino projects. This module features optocoupler isolation, supporting both high and low level triggers, ensuring stable performance and strong driving capabilities. Features: Optocoupler isolation enhances stability and driving strength. Supports high and low level triggering with a minimal trigger current of 5mA. Configurable voltage levels at 5V, 12V, and 24V to suit various applications. Each channel can be individually set for high or low trigger via jumpers. Fault-tolerant design ensures safety, maintaining non-operation if the