UK4AA-AS2 certified anti-explosion front switch flashlight with xenon bulb. Orange casing.

UK4AA-AS2 explosion-proof flashlight for industrial environments and emergency response

The UK4AA-AS2 explosion-proof flashlight is designed to provide reliable lighting in environments where safety is critical and where standard equipment is not suitable. With its high-visibility orange housing, front switch and xenon bulb, it is a practical tool for industrial settings, emergency response, inspections and work carried out in areas where appropriate lighting equipment is required. Its compact format fits in a pocket and stays easy to keep close at hand for movement, visual checks, maintenance tasks or building interventions.

Made by Underwater Kinetics (part number 14109, made in the USA), this flashlight is designed for workers who need a simple, durable and easy-to-handle portable light source, even in demanding conditions. Its orange housing also makes it easier to spot among other equipment, a real advantage during an emergency or in a cluttered space.

Explosion-proof certification and hazardous-location safety

The key feature of this flashlight is its hazardous-location certification. It meets UL and ULC for CSA hazardous locations: Class I, Division 2, Groups A, B, C & D; Class II, Division 2, Group G; Class III, Division 2; Temperature class T2A. It includes several safety features: a hydrogen-absorbing catalyst, polarized battery contacts that prevent improper battery insertion, and a gas vent in the casing that minimizes explosive risks caused by leaking batteries.

The flashlight requires 4 AA alkaline batteries (included). It is rated for use in hazardous locations with the following batteries: Duracell MN1500/PC1500, Energizer E91/EN91 and Rayovac AL-AA/815. It remains compatible with other AA battery brands, but these have not been rated for hazardous locations.

Technical specifications of the explosion-proof flashlight

The UK4AA-AS2 specifications reflect its purpose as a rugged, reliable tool:

• Brightness: 38 lumens
• Wattage: 2.1 W
• Battery runtime: 4 to 5 h
• Beam distance: 95 m (311 ft)
• Enclosure protection: IP67 (6 = dust tight; 7 = resistant to immersion up to 1 m for 30 minutes)
• Drop resistance: 10 m (30 ft)
• Size: 15.5 cm × 4.1 cm × 3.5 cm (6.1 in × 1.6 in × 1.4 in)
• Weight: 156 g (5.5 oz)

As for materials: orange ABS plastic casing, clear polycarbonate window, black polyurethane rubber bezel and stainless-steel metal components. The bulb is protected by a rubber bezel with raised edges that cushions impacts. The flashlight can be clipped on a hard hat or helmet and its easy-access front switch can be operated even while wearing gloves.

Benefits of the UK4AA-AS2 explosion-proof flashlight

Beyond its certification, this flashlight offers concrete benefits in the field.

Reliable lighting in real conditions

During an inspection, a power outage, an evacuation or a rapid intervention, a dedicated, reliable light makes a significant difference: it helps you see better and signal your presence.

Ruggedness and safety-focused design

Drop-resistant to 10 m, IP67 waterproof and fitted with safety features (hydrogen catalyst, polarized contacts, vent), it is built to last in demanding environments.

Worksites and sectors where this flashlight is required

This explosion-proof flashlight is recommended everywhere certified portable lighting is required:

• Confined-space workers and potentially explosive atmospheres.
• Municipal employees, public works and utilities.
• Firefighters and emergency response teams.
• Safety inspectors and surveillance rounds.
• Industrial settings, maintenance and evacuation kits.

Use and maintenance of the explosion-proof flashlight

Insert the 4 AA batteries respecting the polarized contacts (which prevent wrong orientation), then use the front switch to turn on the light. To keep the hazardous-location rating, use the certified battery brands (Duracell MN1500/PC1500, Energizer E91/EN91, Rayovac AL-AA/815). Regularly check the seal and window condition to maintain the IP67 rating, and replace the worn xenon bulb with the dedicated replacement assembly. Remove the batteries if the flashlight will be unused for a long time.

FAQ about the UK4AA-AS2 explosion-proof flashlight

What is an explosion-proof flashlight used for?

It provides portable lighting in environments where equipment certified for hazardous locations (potentially explosive atmospheres) is required. The UK4AA-AS2 is UL/ULC Class I Division 2 certified.

Which batteries keep the certification valid?

For hazardous-location use, use the certified AA batteries: Duracell MN1500/PC1500, Energizer E91/EN91 or Rayovac AL-AA/815. Other brands work but are not certified for these locations.

How do I replace the bulb?

The xenon bulb and its reflector are replaced using the dedicated replacement assembly (LL02A), designed for this flashlight.

Suggested complementary flashlights and accessories

To complete your safety lighting equipment, also see the replacement xenon assembly (LL02A), a belt pouch (LL02P), the eLED version of the UK4AA (LL01), a Worksafe work light (LL03), an Energizer Hard Case flashlight (LL05), a hands-free headlight (LL06), AA 1.5 V alkaline batteries (LBAA) or an economical flashlight (LL04). Under "Accessories" at the bottom of the page.

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