Specifications: PRODUCTS SPECIFICATION PAX-21AU INPUT CONDITION VOLTAGE 11--28VDC CURRENT 2.0A.MAX OUTPUT CONDITION VOLTAGE 5VDC +/-0.25 LOAD MIN 0A. LOAD MAX 2A OVERCURRENT PROTECTION A 2.25( +/-0.2) OPERATING TEMPERATURE ℃ ?5-- +45 OPERATING HUMIDITY ％RH 20%RH-80%RH STORAGE TEMPERATURE ℃ ?5-- +85 STORAGE HUMIDITY ％RH 10%RH-85%RH DC OUTPUT CONNECTOR mm USB WEIGHT APPROX Kg 0.068 PRODUCT SIZE APPROX L*W*H 88.6mm*38.1mm*30mm