CSI EXPEDITION 1900 Discounts Apply !
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With a housing originally designed for U.S. Navy EOD use, the CSI EXPEDITION® 1900 is serious lighting with the same heavy-duty construction as all of our dive-rated lights. This 19 LED flashlight provides more light per watt than traditional flashlights. Double O-ring seals provide an underwater depth rating of 500 feet (150 m). It uses 3 C-cell batteries that last 12+ hours at full power plus an additional 20 hours of usable light. Includes, at no additional charge: an adjustable, cushioned wrist lanyard and rubber glare guard. Add a Velcro strap for hands-free use.

Available in 4 specific wavelengths and white, see below for Wavelength uses:

  • WHITE: General-purpose illumination and fingerprint search.
  • GREEN 525nm: Body fluids, night running.
  • BLUE-GREEN 505nm: Body fluids, traffic control lights.
  • BLUE 470nm: Blood detection, NSR adhesive curing, night vision preservation, biofluorescence.
  • UV 395nm: Urine and pet stains, invisible UV ink fluorescence (hand stamps, nightclubs), ID/currency verification (UV watermarks), artwork/antique alteration checking.  


  • Dive Rated to 500 feetDepth Rating: 500 feet (150 m), IP68M
  • Lamps: 19 LEDs
  • Lamp Life: 10,000+ hours
  • Burn Time: 12+ hours at full power plus an additional 20 hours of usable lightCE approved
  • Batteries: 3 C-cell Alkaline (included)
  • Power: 130 Lumens (white; colors vary)
  • Materials: ABS and LEXAN®
  • Dimensions: 7.75" (20 cm) L x 1.9" (5 cm) Dia.
  • Weight: 0.69 lbs. (0.31 kg)
  • CE (European Union compliant)
  • U.S. Patent #6,168,288 & #6,814,463
  • Made in the U.S.A. (complies with the "Buy American Act", may contain imported components).
  • Lifetime Warranty


P/N 3C-9600-4

Price: $99.95
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