Output current: 3A (max)Conversion efficiency: 92% (maximum)Residual ripple: 30 mVSwitching frequency: 65 kHzWorking temperature: -45 centigrade ~ + 85 centigradePrecautionsThe positive input IN + IN negative input The positive output OUT + OUT- output negative Note that input and output can not be undone. Reversing could burn Input: DC 3V to 35V (the output voltage of the input must be higher than the voltage can not be increased above 1.5V.)Output: DC 1.5V to 35V voltage is continuously adjustable, the maximum efficiency output current of 3A.Features: use all fixed capacitors, 36U thick printed circuit boards, high Q inductor with high power LED displayWorking time is recommended to use less than the current of 2.5A exceeds 2A heat sink (10W output above); Because the downward module, to ensure a stable output, keep a minimum pressure 1.5V.Color: image colorMaterial: MetalSize: 43mm x 21mm x 14mmPackage contents:30 x DC converterOnly the above package content, other products are not included.Note: Light 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.