This is a recent upgrade from the old NR-700. It has all the same features as the original light, but with an upgrade in the LED, it is now 1000 lumens. Built from rugged anodized aluminum this light can stand up to any environment. This keeps it simple and easy for packing. Hard attach point on the rear for using the included lanyard. Push button onoff means quick and easy to use, no more worrying if you're turning the head the right way! Built in battery level indicator notifies you I've you've got a full charge before you get in, and lets you track your usage during a dive. The light features 3 power levels and an SOS mode.