PLEASE NOTE: WE ORDER ALL ITEMS FROM THIS SUPPLIER AS WE GO ALONG, AND WE NEED TO CHECK WITH THE SUPPLIER FIRST TO MAKE SURE THERE IS AVAILABILITY. MANY THANKS IN ADVANCE, WATERWORLD SPORTS ONE OF A KINDAs an experienced diver, you know perfectly how it is difficult to find a dive light that’s bright, durable, lightweight and works reliably in almost every conditions.LED NAUTILUS is all that, but above these, it offers the adjustable beam angle (focusable) that switches between an intense focus to a wide perfectly round beam.MOST VERSATILE DIVE LIGHTThis innovative dive light utilizes the latest COB Cree CXB chip and Fresnel lens that allows providing  impressive 4000 lumens of light and smoothly adjust the light beam to as low as 9 degrees and as high as 45 degrees.LED NAUTILUS can be combined with different cables (E/O cord, Standard or Sidemount cable ) and different batteries (ACCU TYPE 24, ACCU TYPE 14 and ACCU TYPE 10) or heating batteries (ACCU THERMO 24, ACCU THERMO 14, ACCU THERMO 24 Special).POWER ADJUSTMENTLED NAUTILUS features three light levels BOOST, OPERATIONAL and BACK-UP to preserve battery and adjust brightness levels to eliminate backscatter in murky water.The burn time of the light will depend on what level one has chosen.COMPACT DESIGNAll these features are packed in a relatively small housing, with only 140 mm length and 60 mm in diameter.Yet while exceptionally durable, it respectively weighs 415 g and 150 g underwater.Smooth and compact design is perfectly balanced making it easy to operate when in use with Goodman handle or without.DURABILITY AND RELIABILITYIt is built from hard anodised marine aluminium making it resistant to corrosion, knocks and scratches.Easy to operate switch knobs are made of lightweight but very tough and corrosion resistant polymer (Delrin®).The 6 mm front glass is made of highly fatigue resistant tempered glass.LED NAUTILUS is tested and can safely operate up to 150 m depth.ADDITIONAL PROTECTION AND STATUS SIGNALINGThe electronic system controls the voltage level and signals low battery level with a strobe flash and automatically switches to back-up mode (light output at 20% light intensity) when the battery is drained.LED NAUTILUS will only work to "take me home" mode until the battery is recharged again.AMMONITE SYSTEM QUALITYAMMOPOWER - top quality products and services backed by our extended to 3 years assurehttps://www.youtube.com/watch?v=uQU9ruBezIo