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Lights > UK4AA eLED CPO Tail Switch

UK4AA eLED CPO Tail Switch

Our 4AA flashlights are the biggest selling certified 4AA lights in the world. The UK4AA eLED® CPO flashlight matches powerful performance with a sleek, compact design that can be operated with gloves. Its LED lamp is ultra-bright, long-lasting and provides a wide beam for superior illumination.
Certified intrinsically safe for use in hazardous conditions.

  • Prioprietary Compound Path Optics (CPO) permits high efficiency and compact size
  • Thermal Recovery System recycles heat from the LED to warm batteries for improved performance in low temperatures
  • Certified intrinsically safe - Class 1, Div 1
  • Push-button tail switch switches light between ON/OFF with continuous or momentary action
  • LED will not break when dropped and its life expectancy is well over 50,000 hours
  • Waterproof design for all weather use
  • Beam produces a bright spot with almost no peripheral light so nearby personnel are not affected
  • Attaches to all work helmets using UK accessory clips
  • High impact ABS, LEXAN® and polyurethane rubber, construction for durability (CL I Div 1 model)
  • High impact PC/ABS/Graphite, LEXAN® and polyurethane rubber construction for durability (ATEX model)
  • Proudly made in the USA 
Dimensions (L W H): 6.30 in x 1.60 in x 1.40 in
16.00 cm x 4.06 cm x 3.56 cm
Lights Subcategory: Hands-Free Lights / Certified
Battery Type: Alkaline Disposable
Lamp Type: eLED
Battery Description: 4AA Alkaline / LR6
Burn Time (Alkaline): 4-5 hrs
Light Output (Alkaline): 120 lm
Weight: 5.60 oz
158.76 g
Beam Distance: 631.00 ft
192.33 m
Enclosure Protection: IP67
Depth Rating: 10.00 ft
3.05 m
  • ETL
  • Class I Div 1
  • Intrinsically Safe
  • ATEX
AMERICAN standard (UL STD 783, UL STD 913; CERTIFIED TO CSA STD C22.2 NO. 157)
ETL (US, Canada) Approved

ATEX standards
Zone 2 Certifications for Zone 1 include Zone 2
Zone 1 SEV 08 ATEX 0164
II 2G Ex e ib IIC T4
II 2D Ex ibD 21 T98°C
(Download EC Examination Certificate listed under Documentation)
UK Part # Description NSN #
14431 UK4AA eLED CPO-AT (CL I Div 1), Tail Switch, Safety Yellow
14436 UK4AA eLED CPO-ET (ATEX), Tail Switch, Graphite
14457 UK4AA eLED CPO-AT (CL I Div 1), Tail Switch, Black

For ordering information, please refer to the stock numbers and contact UK Sales directly at 858.513.9100 ext. 244, or email us at

UK Part # Description NSN # Price Add to
14815 O-Ring 4AA/Mini Q40/3AA/Nitex Pro $3.99 Add to Cart
14816 Nylon Belt Pouch, 4AA/3AA $17.99 Add to Cart
14818 Stainless Steel Adjustable Helmet Clip, 4AA/3AA (for American Style Helmets) 8470-01-539-2139 $22.99 Add to Cart
14819 Universal Helmet Clip, 4AA/3AA/2AA 6230-01-440-0447 $19.99 Add to Cart
14833 Smooth Bianchi Belt Holster $22.99 Add to Cart
14843 Nylon Pocket Clip (Pack of 10) $49.99 Add to Cart
14851 Rylee Helmet Clip, 4AA/3AA (for American Style Helmets) $19.99 Add to Cart
14857 Metal Pocket Clip (Pack of 10) Add to Cart
14856 Metal Pocket Clip (1) Add to Cart
14864 Helmet Clip 4AA/3AA, Gallet F1 S/SA/SL/RT/E, Gallet F2 (for European Style Helmets)
14865 Helmet Clip 4AA/3AA, Gallet F1 S/SA (for European Style Helmets)
14866 Helmet Clip 4AA/3AA, DIN 14940 (for European Style Helmets)
14867 Helmet Clip 4AA/3AA, Rosenbauer HEROS I/II/GFK (for European Style Helmets)
14869 Helmet Clip 4AA/3AA, SCHUBERTH F200/F210 ST (for European Style Helmets)
14871 Helmet Clip 4AA/3AA, DRÄGER HPS 6100 (for European Style Helmets)
14876 Helmet Clip 4AA/3AA, GALLET F1 SF (for European Style Helmets) 5340-99-874-3272
14877 Traffic Director Wand - 4AA/Nitex Pro 6230-01-440-0457 $12.99 Add to Cart
14878 Bezel, UK4AA eLED CPO/Nitex Pro $22.99 Add to Cart
14868 Helmet Clip 4AA/3AA, Schuberth F200/F210 GR (for European Style Helmets)
14882 Helmet Clip 4AA/3AA, CROMWELL F600 (for European Style Helmets)
14883 Helmet Clip 4AA/3AA, UNIVERSAL (ADHESIVE ATTACHMENT) (for European Style Helmets)

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