The Ultra III Dive Flashlight from Intova has a depth rating of 400'. It features a bright CREE XML-T6 LED that outputs 500 lumens at a concentrated beam angle of 14° and a color temperature of 6000~7000K. It will burn for up to 6 hr. The light's body is constructed from durable aluminum, which has been anodized to safeguard against the corrosive effects of seawater. The Ultra III's front element is made of glass. A textured grip allows you to maintain a secure hold, even while wearing gloves. The light has a magnetic slide switch that turns it on and off (full power only), and it runs on 6 conveniently replaceable AA batteries (not included).