CapLamps is temporarily closed due to staff illness. We apologise for any inconvenience.

Wisdom KL4MS ATEX Group II LED Miners Cap Lamp

Rechargeable ATEX Group II rated & certified LED / lithium ion helmet mounted lamp.

ATEX Group II Rated & Certified Wisdom KL4MS Cap Lamp - 11,000 Lux / 167 Lumens / 13 Hour Run-Time

The Wisdom range of corded miners lamps are designed to withstand the hardships of commercial mining, quarrying and confined space working. The lamps are built to a very high standard, and provide an unrivalled combination of performance and affordability.

The KL4MS ATEX Group II will run on full power for 13 hours on a single charge, and can be charged using the supplied USB cable, or the optional USB Power Pack, or using the Wisdom NWB-20 LiIon 'keyway' smart charger; or, for larger scale installations, on Wisdom rack chargers.

The KL4MS ATEX Group II lamp uses a genuine Cree LED and genuine Sanyo LiIon rechargeable batteries. It provides both an excellent beam - capable of illuminating objects 210m distant - and a good spread of light allowing you to see foreground and distance. The lamp weighs just 440g (465g 1.65m version) and is IP68 rated - totally dust tight, protected against prolonged effects of immersion under pressure.

ATEX Group II certified for use in hazardous/explosive environments and confined spaces. ATEX Group 2: II 2 G Ex ib IIB T6 Gb.

The KL4MS ATEX Group II is a fantastic working lamp at a very affordable price.
Manufacturer: Wisdom
£119.00 incl VAT
Product Files
  • Main light output: 11,000 lux / 167 lumens
  • Main light beam: 210m
  • Main light power: 1.3W
  • Working time (full power): 13 hours
  • Weight: 440g (465g 1.65m cable version)
  • Dimensions: 85 x 94 x 36mm (battery box)
  • Battery type: Sanyo 18650 (x2)
  • Battery capacity: 5.2Ah
  • Charge cycles: Up to 1,200
  • Cable length: 1.4m (1.65m available on special order)
  • IP rating: IP68
  • ATEX Rating: II 2G Ex ib op is IIB T4 Gb (-20°C≤Ta≤+40°C)
  • Usability: ergonomic design, charge level indicator with low-battery visual warning

The Wisdom KL4MS ATEX Group II has a standard specification that includes a 1.4m cable but can be ordered with a longer cable if required.

Please use the Contact Us tab to enquire about a non-standard lamp, please note that non-standard lamps are subject to a minimum order quantity.

Cable Length
Extra-long: 1.65m

  • USB Power Pack: 4.5 hours
  • NWB-20: 4.5 hours
  • NWB-25/A: Not suitable
  • Standard charge rack: 5.5 hours
  • Intelligent charge rack: Not suitable

Note: to maintain the ATEX rating this lamp should only be charged with the USB power pack or standard chargers, not the NWB-25/A or the /A fast charge racks.

  • ATEX Rating: II 2G Ex ib op is IIB T4 Gb (-20°C≤Ta≤+40°C)
  • IP68 - totally dust tight, protected against prolonged effects of immersion under pressure
Products specifications
Lamp format Corded (external battery pack)
Power supply Lithium Ion (LiIon) battery 3.7 V / 5.2 Ah
Light modes 2 - Main and Auxiliary (Emergency)
Main LED duration 13 hours
Auxiliary LED duration -
Intense (boost/combined) LED duration -
Main LED output (brightness) 11,000 lux at 1m (167 lumens)
Auxiliary LED output (brightness) -
Intense (boost/combined) LED output (brightness) -
Charging time (recommended charger) 4.5 hours
Charging cycles 1,200 cycles (in good working conditions)
Cable length 140cm (165cm by special order)
Total weight 440g
ATEX certification II 2G Ex ib op is IIB T4 Gb (-20°C≤Ta≤+40°C)
Other certified standards -
IP rating IP68
Working temperature -
Warranty 2 years (warranty terms of Wisdom)