SMAKN&reg; Waterproof DC/DC Converter 12V/24V Step Down to 6V/15A 90W Power Supply Module input voltage: DC 10V-35V output parameter : DC 6V Output power: 15A 90W Size(mm): 74 x 72 x 31 working temperature: (-40 `80) when it is more than 40,please make lower power, or enhance heat dissipation