Features: 4 Channel Adjustable direct current Converter delivers stable voltages outputs with high efficiency pressure reducing converters, solving unstable power supply issues for multi circuit electronic projects through precise voltages regulation. Built with strong flame retardant 4 fiberglass board for superior heat resistance and mechanical strength, this module supports 3.3V 5V 12V adjustable direct current input ranges for easy installation and precise voltages adjustment via integrated potentiometers. Ideal for electronics hobbyists, embedded systems developers, and engineers requiring stable multi channel power management in craft projects or professional setups. Perfect for powering robotics, internet of things devices, lab equipment, and accuracy instruments in workshops, labs, or home studios where stable, adjustable direct current voltages is critical. Its compact, user friendly design ensures seamless integration into diverse systems, while the flame retardant 4 construction ensures long term performances even in high temperature or humid environments. Specifications: Materials: flame retardant 4 glass fiber board Parameters: The output voltages can be adjusted from 3.3V to 12V, and the conversion efficiency is as high as 92%. Size: 6.85x10cm/2.7x3.94 inch Quantity:1 piece Package Includes: 1 piece of pressure reducing converters note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Thank you!