LED: 10W LED chips
Light mode: High Power-Middle Power-Strobe- OFF –Strobe
Battery: 3pcs D Battery
Size: 54mm* 265mm
Run time: 8h
This is a really well built dive light.
The construction is beefy. All of the joints and opening are sealed with synthetic o-rings (no cheap but rubber anywhere), and they include spare o-rings. The glass is thick and looks like it can take the pressure. The only switch on the light is based on a rotating bezel ring. It works well rotating both directions. The light on high is super bright with a decently concentrated beam, and a large wash area. The flashing mode could work well to signal a boat, the shore, or a rescue craft. Low mode would work well for gear prep on a night dive conserving the battery.