Features: ULN2803A for Darlington Transistor Array Driver Module delivers high voltages (50V) and high current (500mA/channel) output. Perfect for powering motors, relays, and industrial loads with unmatchedly reliability. Integrated 8 channel for Darlington pair and reverse voltages protections diodes simplifies circuit design while safeguarding against voltages spikes, ensuring durability in demanding applications. for electronics engineers, hobbyists, and developers for microcontrollers needing TTL compatible driver solution. Optimized for industrial automation, robotics, LED arrays, and relays controls requiring powerful switching capabilities. Specifications: Item：ULN2803A Transistor Arrays Driver Module Support Output up to 50V Size:about 25x24mm/0.98x0.94in For Darlington Quantity: 1Set/3Set Package Includes: 1/3Set ULN2803A Transistor Arrays Driver Module Optional note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.