Supply voltage:11-27VDC, unstable output voltage above 27VOutput voltage:Vin-50VOutput power:500WWorking current:67mA@(Vin=12V Vout=36V),80mA@(Vin=12V Vout=48V),42mA@(Vin=20V Vout=36V),50mA@(Vin=20V Vout=48V)Conversion efficiency:92%-95%Temperature controlled fan rotation conditions:Just after powering on, it will automatically run a 2second self check and then stop. During operation, if the board temperature reaches 36 or above, the fan will rotate, otherwise the fan will stop.Module weight:Net weight:345gColour:BlackMaterial:PlasticSize:Module size:122x92x39mmPackage Contents:1 * Voltage Charger Step Up ModuleOnly the above package content, other products are not included.Note: Light reflection 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 +/- 1-3cm.