The TUL-400 is a compact 165 lumen LED light with a 60 degree beam angle that is powered by three AAA cells. Ideal for a daytime accessory light or for a night time backup, it is a great companion to our high-powered TUL-1000. The light offers 3 power modes, 100%, 30% and strobe (flashing) with a run time from 120 to 420 minutes. A compact and streamlined anodized aluminum body with triple o-ring screwed battery compartment and rear magnetic push button switch combine for a depth rating of 400ft/120m.