The Ammonite System LED ONE is a compact, durable backup dive light designed for demanding underwater use. Constructed from Delrin® and hard-anodized aluminum, it resists abrasion and the effects of a marine environment.

• Light output: Up to 400 lumens of cold white light with a focused 6° beam angle.
• Battery and runtime: Operates for approximately 7 hours on three AA batteries or equivalent rechargeable cells.
• Depth rating: Waterproof to 200 meters.
• Controls and handling: Military-style grip with a quarter-turn on/off switch for reliable operation underwater.
• Size: 197 mm length, 43 mm diameter — compact enough to fit in a jacket pocket or attach to a harness.

This straightforward, robust design makes the LED ONE a dependable choice for a backup or secondary dive light.