400w ~ 800w£¡§12v/24v£© Charge off voltage hvd 14.4v / 28.8v Low voltage directive lvd 10.8v / 21.6v Low voltage restore lvr 11.8v / 23.6v Charge loop drop £¼300mv Discharge loop drop £¼50mv Overload protection 31.5v Short-circuit protection 30a Light operate Light control on + light control off Light time control Light control on/off + time control on/off Time control classification 0.5 hours started, half an hour of one grade, up to 10 hours Output route Single bulb Ambient temperature -25¡æ¡ª¡ª+55¡æ Safe degree Ip55 Quiescent dissipation 24ma Wind turbine braking mechanism Unloading brake Control mode Solar charge/ Specification: 40pcs/carton