Specification:

Product name:	Fenix SD20 CREE XM-L2 Diving LED Flashlight
Brand:	Fenix
Model:	SD20
Emitter Brand	CREE XM-L2
Material:	Aluminum
Total Emitters:	1
Mode:	White (High、Low) 、Red
Max Lumens:	1000LM
Max Runtime:	8h
Battery Configurations:	2 x 18650 / 4 x CR123A battery(Not inlcuded)
Switch Type:	Rotation
Switch Location:	Head
Peak Beam Intensity:	7400cd
Impact Resistant	1m
Max Range:	172m
Waterproof:	Underwater 100m
Weight:	245g(excluding battery)
Size:	208mm(L) × 26mm(Body) × 40mm(Head)

Features:
  1. Uses Cree XM-L2 U2 and Cree XQE Red LED with a lifespan of 50、000 hours
  2. Output Modes:
      White Light - High: 1000 Lumens (3 hrs. and 564-foot beam distance)
      White Light - Low: 400 Lumens (7 hrs. 30 min. and 354-foot beam distance)
      Red Light - 105 Lumens (8 hrs. and 239-foot beam distance)
  3. Rotating magnetic ring for one-hand control
  4. Dual layer body tube guards against corrosion
  5. Integrated white and red light illumination
  6. Digitally regulated output maintains constant brightness
  7. Intelligent over-heat protection to avoid high temperature of the surface
  8. Low-voltage warning reminds when battery replacement is needed  
  9. Reverse polarity protection、 to protect from improper battery installation
10. Tail cap with big buckle for fast and convenient quick draw
11. Made of durable aircraft-grade aluminum
12. Premium type III hard-anodized anti-abrasive finish
13. Toughened ultra-clear glass lens with anti-reflective coating

Package included:
1 X Fenix SD20 CREE XM-L2 1000LM Diving LED Flashlight
1 X Flashlight lanyard
1 X O-rings
1 X Conducting plate
1 X User manual