Seac Luce Diving Light Type of batteries: 1, 5 AA/R6 alkaline or 1,2 V same size recharrgeable Autonomy: 600 min. Maximum depth: 100 m Diameter/length:  45/ lunghezza 155 mm Weight: 330 g with batteries. On-off switch: Mechanical on-off switch Seal: double O-Ring radial seal. Glass: clear Policarbonate