Ammonite Nautilus Focusable Light Head

Ammonite LED Nautilus Focusable Light Head

The Ammonite LED Nautilus is a Focusable Light Head and Ammonite System's most versatile light with up to 4000 lumens output and an adjustable beam that can be focused from a narrow 9º to a wide 45º. With 4 to 10 hours burn time, depending on the battery used, it covers a wide range of technical diving conditions.

The Ammonite Nautilus light head has been built with the technical diver in mind for demanding conditions and is bright, durable, lightweight and reliable.

Ammonite LED Nautilus Key Specifications:

• Power: 40W
• Light Source: 1xCXB LED CREE®
• Max Output: 4000lm
• Focus: 9º - 45º
• Corona: Medium
• Optics: Focusable Fresnel Lens
• Colour Temp: Cool White
• Switch: Magnetic - 3 Light Intensity
• Front Glass: 5mm Tempered
• Material: Hard Anodised Aluminium - DELRIN®
  
• Surface Weight: 415g
• Submerged Weight: 150g
• Max Length: 140mm
• Max Diameter: 60mm

The Ammonite System is modular

Due to the modular design concept, you can configure your umbilical light set according to your needs.

All Ammonite umbilical lights, cables, standard batteries and heating batteries are equipped with the same chinch-type connector. So when one of the parts wears out, or you would want to upgrade it, there are no obstacles.

Modularity also affects the convenience of use and safety. For example, you can change the broken cable for a new one on the diving spot without sending it to the service centre.

Ammonite LED Nautilus burn-times

Ammonite System LED Nautilus light head burn times vary, primarily depending on the battery you will be using and the power setting. Burn times are also influenced by battery health (charge, discharge cycles and age) and ambient water temperature. 

The chart below is based on the 9, 10, 14 and 24Ah battery sets that can be purchased with the light head all-inclusive in the Ammonite Nautilus Focusable Light Kit.

Nautilus is One Of A Kind

As an experienced diver, you know perfectly how difficult it is to find a bright, durable, lightweight dive light that works reliably in almost every condition.

The Ammonite Nautilus light head utilises the latest Cree CXB LED chip with a Fresnel lens that allows you to make the most out of the impressive 4000-lumen output. You can smoothly adjust the light beam to be as narrow as 9º or as wide as 45º.

Three Light Levels

LED Nautilus features three light levels: BOOST, OPERATIONAL, and BACK-UP, to preserve battery life and adjust brightness levels to eliminate backscatter in murky water. The burn time of the light will depend on what level one has chosen.

Durable and Compact

The smooth and compact design of the Ammonite Nautilus light head is perfectly balanced, making it easy to operate with or without a Goodman Handle.

All these features are packed into a relatively small housing that measures only 140mm in length and 60mm in diameter. Despite its exceptional durability, the Nautilus lighthead weighs 415g and 150g underwater. Constructed from marine-grade aluminium alloy and covered with a hard anodised finish, the Ammonite Nautilus light head is resistant to corrosion and mechanical scratches.

The 5mm front glass is made of highly fatigue-resistant tempered glass. The Nautilus lighthead has been extensively tested and can safely operate at depths of up to 150m. Easy-to-use switch knobs are made from lightweight yet extremely tough and corrosion-resistant polymer (Delrin®).

Take Me Home mode

The inner microchip system signals a low battery level with a strobe flash. When drained, the battery automatically switches to the “Take me home” mode (light output at 20% light intensity).

"Take me home" is a backup mode to which Ammonite umbilical lights switch when the battery is drained. Light will continue operating for at least 1 hour or more depending on the light and used battery. Light will only work in "take me home" mode until the battery is recharged.

NAUTILUS SPECIFICATIONS:

Light Output: Up to 4000 lumen
Focus Angle: 9º - 45º
Type of Optics: Focusable fresnel lens
Total Power: 40W
Light Source: 1 x CXB 1520 LED CREE
Colour Temperature: Cool White
Material: Hard annodised aluminium / Delrin
Switch Type: Magnetic switch, 3 level intensity, discharge warning, backup mode
Max. Length: 140mm
Max. Diameter: 60mm
Front Glass: 5mm tempered glass
Surface Weight: 415g
In-water Weight: 150g
Max. Operating Depth: 150m

SHIPPING:

We aim to dispatch all in-stock items within 2 working days but will inform you of approximate delivery times should any item on your order be out of stock or on supplier backorder due to current manufacturing or transport delays caused by global shortages and/or impeded production.

Please refer to our Shipping Policy and Returns & Refunds Policy for detailed information on delivery terms and returns.

Our current shipping rates are as follows:

• UK mainland orders £45 and over: FREE
• UK mainland orders under £45: £4.90 Fixed Rate
• Scottish Higland and Islands & Isle of Man: £9.90 Fixed Rate
• Channel Islands & Northern Ireland: £14.90 Fixed Rate
• European Union: £13.90 + 5% of order value (maximum £30)
• Rest of the World: £19.50 + 8% of order value (maximum £55)
• BFPO Post Codes: £20

INTERNATIONAL EXCEPTIONS:

For international orders containing weights, cylinders (excluding suit inflation bottles) and Suex scooters please contact us in advance before placing your order.

These products are not included in our global max-capped shipping rates and are only shipped outside of UK mainland after freight cost is calculated based on total weight, dimensions of parcel, location of delivery and the courier service used. We will let you know what this cost will be before processing any order.

All cylinders we ship within and outside of UK mainland are filled and tested on site before being emptied for dispatch. Cylinders shipped outside of the UK will be empty and will also have their valves removed, requiring reassembly after you receive delivery. Twinset manifolds and bands will also be removed and dispatched together with the cylinders for safe global shipping.

RETURNS & REFUNDS

We offer a 30 day return for any product sold under our Returns & Refunds Policy Please contact us before any return with your order number and date details. Receive our Returns Authorisation Form and instructions and enclose them with your return to expedite a refund. Detailed information is available in our Returns & Refunds Policy.

Email us at sales@dirdirect.com or call us on +44(0)1305 824 555

Note that all returned items are shipped at the customer's own risk and remain the customer's property until received by Underwater Explorers, so please ensure they are packaged well and use reliable postal services with tracking facilities. The goods will be inspected on arrival. 

Return postages are at your own cost and our outbound shipping costs (if items are sold with integrated basic shipping charges i.e. Free shipping for orders £45 and above) the UK shipping rate may be deducted from any UK mainland refund unless linked to a fault/defect claim. 

Please contact us with your order number and name before sending any returns to:

Underwater Explorers – Returns
Unit 1, Maritime Business Centre
Mereside, Portland
Dorset, DT5 1FD 
United Kingdom

Please refer to our Shipping Policy and Returns & Refunds Policy for detailed information.