1. Ultra-high efficiency, up to 93%. 2. Ultra-low power consumption, static power consumption Less than 1mA. 3. High reliability, components are all from regular procurement channels. 4. Ultra-low ripple noise Less than 50mV. 5. Wide voltage input, wide voltage 3.2-40V, ultra-small input volume. Ripple noise:Less than 50mV Operating frequency:500KHz Storage temperature:-10-+50℃ Operating humidity:20-90RH% Static power consumption:Less than 1mA Storage humidity:10-90RH% Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Type:9V Colour:As Shown Material:PCB Package Contents: 1 * step-down module Only 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.