Support QC2.0/QC3.0/ SCP/MTK/ and other mainstream fast charging protocols. Dual USB, adopting IP6505T fast charging recognition chip. Supports a of batteries, battery type and number of strings can be set (default 12V lead-acid batteries) battery level display battery voltage display Color: as shown material: Plastic Input voltage: DC6V-30V Power display: 7-segment display 13% 26% 39% 52% 65% 78% 91% Output voltage: Default 5V, automatically adjusted between 3-12V after triggering fast charging Output power: Maximum 24W (5V 4A, 9V 2.5A, 12V 2A, etc.) USB efficiency: 90%-97% Working temperature: -10-60 Working humidity: 10-80% (no condensation) Installation size: 75mm x 39mm Package Contents: 1 x display 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.