Advanced MPPT maximum power point tracking technology, the tracking efficiency is no less than 99.5%. The LCD is designed to dynamically display the operation data and working status of the equipment. Compatible with Seal, GEL, Flooded, LifePO4 battery charging. Dual USB 5V charging ports,12V/24V/36V/48V automatic identification. Over-voltage protection,Over-current protection,Over temperature protection,7 kinds of working mode selection. Hign-concerned Chemical:None Application:Charger Controller,Voltage Controller,Lighting Controller,Solar System Controller,Solar Working Station Maximum Current:100A Type:Solar Controller The product appearance and printed words depending on the batch, but this does not affect use. Colour:As Shown Material:PC flame retardant Package Contents: 1 * 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.