solar energy collector:LD-200 solar energy collectorFunction: Heat waterSuitable for use: Outdoors, Mountaineering ,Fishing, Travels, Geology inspect, Field workMethod of application: Open ... , make the handle bar lock into the groove of hinge, then put the cup in the sunshine, ... . The products not suitable for cold light.size of each one:47X11X11cmpacking:20 pcs/cartonouter carton:56x45x4720'container ...