Features: 1. Advanced MPPT technology & ultra-fast tracking speed, with tracking efficiency no less than 99.5%. 2. Maximum DC/DC transfer efficiency is as high as 98.5%, full load efficiency is up to 97%. 3. Advanced MPPT control alaorithm will minimize the MPP loss rate and loss time. 4. The accuracy of the recognition and tracking at the highest point of multiple-peaks MPP. 5. The wider range of MPP operating voltage. 6. Auto control system to limit the charging power & current go over the rated value. 7. Real-time energy recording and statistical function. 8. Automatic over-temperature power reduction function. 9. It has the protection function of photovoltaic panel input reverse connection and battery reverse connection. 10. It has a settable battery temperature compensation function. 11. Support the lead-acid and lithium batteries. Package includes: 1pc of MPPT Solar Charging Controller 1pc of User Manual Notice: Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is 100%