Lighting System Tips

Your Halcyon Explorer, Apollo, Proteus, or Helios light has an extensive manual that provides detailed information about the care and maintenance of your light. PDF copies of the manuals are available on this website (need link). We strongly recommend that you read through the manual of your lighting system prior to its operation. The manuals cover a range of details that will help ensure that your light will function properly through many years of diving.

In addition to the manuals, we update this section of the Halcyon website with late-breaking technical information and tips for caring for your light. If you have additional questions that you‘d like to see answered here, let us know at