Princeton Tec Sector 5 Spotlight - Black [S522-BK]Sector 5 Spotlight Black The potent 1700 lumen Sector 5 is a severe primary dive light, delivering extensive illumination underwater. Four C cell batteries keep the powerhouse light compact while providing 3. 5 hours of runtime. The trigger switch is easy to use with gloved hands; access is momentary via a half pull and constant via a full pull. The trigger also locks out to prevent accidental activation and battery drain while in transit or storage.