Halcyon Photon Light Kit - 2 x Photon Upgrade to 4 x Lithium Batteries:YES The system securely attaches to

The system securely attaches to a cylinder via a single tank adapter with two cam bands (all included in the package)

making the insertion and removal of weights much easier and quicker

and more durable

All DUI drysuits include patented DUI ZipSeals that allow you to change a neck seal in minutes

2 x 3 Spare O-Rings

Halcyon Photon Light Kit - 2 x Photon Upgrade to 4 x Lithium Batteries:YES The system securely attaches to2 x Halcyon Photon Lights This Halcyon Photon Light Kit includes two standard Photons and a Travel Case. With the optional Lithium Battery upgrade, you can achieve 1200 lumens per light. The Halcyon Photon Light delivers impressive brightness in a compact, dependable design. With its narrow 9 beam, it performs beautifully as a primary or backup light for night, recreational, and technical dives. Dual power modes, flexible battery setups, and a simple