Input Voltage: 12V/24V/36V nominal, acceptance range (8V-40V); Output Voltage: 13.8V DC 10A 138W Maximum Efficiency: greater than or equal to 95%; Ripple Wave: 50Mv; Start-up delay: less than or equal to 2S Overcurrent/Overload/Low load/Short circuit/Overheat intelligent protection Compact aluminum shell with epoxy coating, waterproof, dustproof, shockproof and better heat dissipation Widely used for golf cart, motor, speaker, GPS, LED car display screen, air conditioner, electric fan, solar energy, photovoltaic energy, DVD, industrial equipment, etc. Color: Silver Material: metal Package Contents: 4 x DC Automatic Buck Boost Converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.