IST PROLINE rechargeable LED diving light. Used as a backup light, so it has been used sparingly. [Operation] Both turning on and off work normally. The brightness is a single mode (High fixed) type. A stable model that does not malfunction underwater. Battery is good; it lit up for about 1.5 hours. [Condition] The exterior has minor scratches, but there are no noticeable scratches or corrosion. The O-ring is also in good condition. [Accessories] ・Light body ・18650 rechargeable battery ・Dedicated charger [Specifications (estimated)] ・Brightness: Powerful white LED ・Power source: 18650 lithium-ion rechargeable battery ・Switch method: Head rotation type (tighten to turn on / loosen to turn off) ・Waterproof specification (for diving) [Key Points] Single-mode lights are very easy to handle because you "won't get confused about operation underwater" during night dives and training. Will be shipped via Yu-Packet Plus. Thank you!