OrcaTorch D580 is a professional underwater dive light with max 530 lumens output. Mechanically head rotary switch offers high reliability underwater. The light is compatible with two types of batties: 1* 18650Li-ion rechargeable battery, which is economic and eco-friendly, and the 3*AAA Alkaline batteries, which is low cost and easy to get. It has 6 degrees super narrow beam, quite suitable for recreational diving as a primary light, and for technical diving as a backup light. 

Featuring 

• Uses CREE LED, max 530 lumens 
• Uses 3 x AAA battery, compatible with 1 x 18650 battery 
• 6° beam angle 
• Mechanically head rotary switch offers high-reliability underwater 
• Intelligent Over-Heat protection 
• Water pressure resistant construction, depth rated to 150 meters 
• Reverse polarity protection, to protect from improper battery installation 
• Over-discharge protection function 
• Constructed from high-strength A6061-T6 aluminum 
• Mil-Spec Type III hard anodized finish for durability and corrosion resistance 
• Two sides coated toughened glass with high water pressure resistance under deep water