ITEM NAME:Dc-Dc 3V-35V To 4V-40V Adjustable Step Up Power Module 3V 5V 12V To 19V 24V R9C1 Dc-Dc 3V-35V To 4V-40V Adjustable Step Up Power Module 3V 5V 12V To 19V 24V R9C1 Input:3V - 35V,Output:4V - 40V adjustable Efficiency:94% (MAX) Operating temperature:-40Celsius-85Celsius Load capacity:80W (MAX) Mode of connection:Wiring terminals are free of soldering,IN is input,OUT is output Color:picture color Material:PC + metal Size about:68*40*13.3mm Package Contents: 1 x DC-DC 3V - 35V to 4V - 40V adjustable step up power module.Input:3V - 35V,Output:4V - 40V adjustable. 1 x DC-DC 3V - 35V to 4V - 40V adjustable step up power module. Load capacity:80W (MAX).