DROK buck converter input voltage is DC 9v-36v, output voltage is 5.2V (5V-5.3V available according to your input voltage). The step down regulator adopts synchronous rectification scheme to provide wide voltage range, large current and high efficiency. Our buck voltage regulator is user-friendly, accompany with DC interface and connecting terminals, make it easier to be connected to different devices. The voltage reducer is with USB interface and quick charge identifying chip, and is compatible with all kinds of smart phone. Note: Input different voltage will output different power: input DC 9-24V, output 5.2V/6A/30W; input DC 24-32V, output 5.2V/5A/25W; input DC 32-36V, output 5.2V/3.5A/18W.