ITEM NAME:DC-DC Step Down Power Supply Adjustable Module With LCD Display + Housing C H1G2 DC-DC Step Down Power Supply Adjustable Module With LCD Display + Housing C H1G2 Q7U5 Converter type: DC-DC Mainboard size: 50mm x 30mm x 12mm(LxWxH) Display module: STN LCD LCD size: 37.5mm x 17.0mm(LxW) Specifications: Input voltage: 5~23V (Best voltage 20V) Output voltage: 0V~16.5V (Continuously adjustable) Peak current: 3A LCD accuracy: 1% Conversion efficiency: 95% Load regulation S(I): less than or equal to 0.8% Voltage regulation S(U): less than or equal to 0.8% material:?metal;color: as shown Package included: 1 x DC-DC step-down power suppl module 1 x Transparent shell Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.