Halcyon EOS LED primary Light


Eos LED Primary Light

The promise of LED technology that can fully replace HID lighting just took a step forward with Halcyon’s newest Eos primary light. The new Eos capably blends numerous desirable features with a focused light output exceeding the 10-watt HID. The Eos also reduces battery consumption with an efficient array of dual-intensity LEDs—a quick flip of the switch more than doubles the battery’s run time! A machined aluminum head shields a nearly indestructible LED light array with an expected lifecycle of 20,000 hours. A set of innovative Halcyon features round out the Eos by adding a custom tie point for the Goodman handle and a specially machined rear bolt-snap attachment point. The Halcyon Eos represents the dawn in a new age of underwater lighting and is a welcome addition to our line of primary lighting.

Eos LED Key Features

  • Advanced LED array provides powerful 600 Lumen output in a small, attractive form.
  • Lux rating at one meter is 10700; at three meters, 1450; and at five meters, 530.
  • High-quality, aluminum light head with a Type 3, Class 2 Mil-Spec hard coat is durable and corrosion resistant.
  • Aluminum light head optimizes heat dissipation while protecting LED electronics.
  • High-quality LEDs are rated for approximately 20,000 hours and protected by a nearly indestructible light head.
  • The dual-intensity LED allows an option to double battery run time.
  • The built-in thermal protection circuit auto-switches to low intensity to protect LED array from overheating when out of the water.
  • The Eos Goodman handle features an innovative bolt snap attachment point.
  • The light head body provides a rear bolt snap attachment option.
  • The charger has a switchable universal input, 110-240v.
  • The Eos LED is pressure tested and depth rated to 300ft/90m.
  • There is a lifetime warranty on the canister.
  • The Eos comes standard with our indestructible Explorer canister featuring our proprietary “dry lid” design.


12-watt LED Specifications
4.5 Amp Hour
Battery Pack
Full Power:
5-hour run time
Half Power:
10-hour run time
2.6” OD/11.63” L (6.6cm OD/29.5cm L)
Weight: 4lb. (1.8kg)
Buoyancy: -1.75lb. (-0.8kg)
9 Amp Hour
Battery Pack
Full Power:
10-hour run time
Half Power:
20-hour run time
2.95” OD/11.63” L (7.5cm OD/29.5cm L)
Weight: 5.76lb. (2.6kg)
Buoyancy: -2.8lb. (-1.3kg)
13.5 Amp Hour
Battery Pack
Full Power:
14-hour run time
Half Power:
28-hour run time
3.68” OD/11.63” L (9.3cm OD/29.5cm L)
Weight: 7.75lb. (3.5kg)
Buoyancy: -3.2lb. (-1.5kg)
SKU: EOS Categories: , ,

Additional information

Additional information

Weight 8 lbs
Dimensions 18 × 10 × 10 in
Select Burn

EOS 13.5, EOS 13.5 with E/O, EOS 4.5, EOS 4.5 with E/O, EOS 9, EOS 9 with E/O