1. Small size, light weight, compact and precise internal structure, enhance its flexibility in application scenarios. 2. Integrated charging presets are suitable for most battery types, such as flooded lead-acid batteries, gel-sealed lead-acid batteries and lithium batteries. 3. Compatible with 12V/24V system voltage. 4. The design of the plug-in wiring port saves about 65% of wiring time. In addition, the dedicated cable connector also helps to avoid the risk of reverse connection. 5. The multi-stage charging algorithm is specially designed to optimize each charging cycle. When the battery is fully , the preset charging parameters of the specific charging stage are used to maintain the battery power. Maximum power point tracking (MPPT), tracking efficiency up to 99.9%, conversion efficiency up to 97%; thereby reducing power consumption, reducing heat generation, and lowering operating temperature. Aluminum alloy heat dissipation backplane to optimize heat dissipation performance, improve operating efficiency, and achieve nearly noiseless operation. Warning: Do not charge the lithium battery when the temperature is below 0℃ Color:As Shown Material:ABS Package Contents: 1 * MPPT Solar Charge Controller 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.