Battery lamp: 2 x LR6 AA. Blue light: BL 100 lumens. Three light modes : 6 (red), 50 or 100 lumens. Hook for suspension. Hat reflector. Only one mode change button. Autonomy : 15 hours at 100 lumens, 50 hours at 50 lumens and 100 hours in red mode. Transportation : easily dismantled into two parts for greater compactness in storage. Resist the rain.