1.(-Scope of use-): This Hybrid charge controller match all 12 or 24v battery, including Lithium Battery. Suit max 800w wind generator and max 600w solar panels for wind solar complementary system for home, boat, street light. 2.(-Operational system-): The wind turbine charging part adopts booster MPPT technology, which make it charge continuous and efficiently even in low wind speed. Stepless unloading function including an external dump-load resistance. Solar panel charging use PWM technology by MOS tube in series. 3.(-DisplayDC Load mode-): Bigger LCD screen which easy to browse and handle. DC Load (output) with 3 output modes and each one can be set different model. 4.(-Protection function-): Reversed charging Protection of solar, over charge voltage or under voltage Over load voltage Protection, battery reverse connects and open circuit protection, etc. Colour:Black Material:plastic Package Contents: 1 x Hybrid Wind Solar 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.