Halcyon Dive Systems
Eos LED Primary Lights

Eos LED Primary Lights

Eos LED Primary Lights

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 rounded 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 750 Lumen output in a small, attractive form.
  • Lux ratings:13,100 at one meter; 1450 at three meters; and 530 at five meters.
  • 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 LEDSpecifications
4.5 Amp Hour
Battery Pack
Full Power:
4.5-hour run time
Half Power:
9-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:
9-hour run time
Half Power:
18-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:
13.5-hour run time
Half Power:
27-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)