Dual mode function
Switch between flashing light for emergency signalling and steady light for inspection or constant illumination.
AtoN House Nordic · Lights and lanterns
AQ-4 MkII strobe light
AQ-4 MkII personal marine strobe light
A portable LED strobe for personnel and equipment marking in marine, offshore and industrial work. The AQ-4 MkII offers flashing and steady light, with up to 8 hours of flashing on one 1.5 V C cell.
- Flashing and steady light
- Up to 8 hours flashing
- One replaceable C cell
- Attachment clip
- Waterproof to 500 m
AtoN House Nordic
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- waterproof rating for deep water use
- 500 m
- runtime in flashing mode on one battery
- 8 h
- standard 1.5 V C cell, easy to replace
- 1 x C
- light modes: flashing and steady
- 2
Key features
Key features of the AQ-4 MkII strobe light
A portable LED light with a replaceable battery and a clip for personnel or equipment marking.
LED signalling
A compact LED light provides flashing for signalling and steady light for continuous illumination.
Waterproof to 500 metres
Sealed and pressure rated to 500 metres, so the same light serves divers, deep sea gear and offshore installations.
Portable format
The compact body and attachment clip allow the light to be carried on work gear or assigned equipment.
Replaceable battery
Flashing operation is listed at up to 8 hours on one standard 1.5 V C cell.
Marine and industrial use
The portable housing is designed for marine, offshore and industrial marking applications.
Selectable light mode
Select flashing or steady light using the supplied unit's operating instructions.
Attachment clip
A belt and vest clip on the back fixes the light to a lifejacket, harness or tool, so it can remain positioned with the assigned equipment.
Applications
Where the AQ-4 MkII strobe light is used
Personal and equipment marking for marine, offshore, diving and industrial work.
Maritime safety equipment
Portable signalling carried with maritime personnel and their assigned safety equipment.
Offshore and oil and gas
Personnel and equipment marking for offshore work and emergency kits.
Industrial environments
Portable visual marking on work gear and equipment where the specified light is suitable for the task.
Diving and underwater work
Portable marking of divers or underwater equipment, subject to the operating instructions for the supplied unit.
How it works
How the AQ-4 MkII strobe light is used
Attach the light to the assigned equipment and select the required mode according to the supplied instructions.
The AQ-4 MkII is a portable strobe carried on the person or attached to equipment. Flashing mode provides a signalling light, while steady mode provides continuous illumination. The rear clip secures the light to compatible gear.
Power comes from one replaceable 1.5 V C cell, with up to 8 hours of flashing operation. Check activation, attachment and battery condition as part of the equipment's operating routine.
Select the attachment position on the assigned gear or equipment
Check attachment and operation against the supplied instructions
Select flashing for signalling or steady light for continuous illumination
Inspect the light and battery as part of the equipment routine
Ecosystem
The AQ-4 MkII in the Vikingegaarden safety and AtoN range
The AQ-4 MkII is supplied by Vikingegaarden alongside our marker lights, lanterns and buoys.
Vikingegaarden A/S in Vonge, Denmark, supplies the AQ-4 MkII together with the ML series marker lights and the rest of its aids to navigation portfolio. Where the marker lights and lanterns are fixed installations on buoys and structures, the AQ-4 MkII is the portable, personal light in the range: it goes on the crew, the diver or the equipment. Sales and support are handled from Denmark on +45 7580 3960.
- Portable strobe from the same supplier as the ML marker lights
- Two colour variants of the housing, yellow and dark green
- Advice on choosing between strobe, marker light and lantern for each task
- Danish sales and support from Vikingegaarden A/S
Technical details
AQ-4 MkII technical data
A portable, attachable strobe, not a fixed installation: it clips onto a lifejacket, harness or work vest.
Use the operating instructions for the supplied unit to confirm activation, mode selection, attachment and battery replacement.
Ask about a specification| Spec | AQ-4 MkII |
|---|---|
| Waterproof rating | Up to 500 m |
| Battery | 1 x 1.5 V C cell |
| Runtime | Up to 8 hours in flashing mode |
| Light modes | Flashing and fixed |
| Attachment | Belt and vest clip on the back |
| Body | Rubberised grip with finger slots, locking base cap |
Product guide
Selecting a personal marine strobe
The AQ-4 MkII is a portable light for personnel and equipment. Its role differs from the fixed navigation lights used on buoys and structures.
Flashing and steady modes
The AQ-4 MkII offers flashing for signalling and steady light for continuous illumination. It can be carried with maritime, offshore, diving and industrial equipment, with the intended use and attachment checked for the task.
Battery and waterproof rating
The light uses one 1.5 V C cell and provides up to 8 hours of flashing operation. Its listed waterproof rating is 500 metres. Select, inspect and operate the supplied unit according to its instructions.
Attachment and operation
A rear clip attaches the light to compatible gear. Confirm the attachment position, mode selection and battery replacement procedure using the instructions for the unit supplied. Vikingegaarden can help identify the appropriate product documentation.
Supply and product selection
Vikingegaarden supplies the AQ-4 MkII from Denmark through AtoN House Nordic. For installed marking on buoys, nets or offshore structures, compare ML marker lights and marine lanterns.
A closer look
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Good to know
Frequently asked questions about the AQ-4 MkII strobe light
What is the AQ-4 MkII used for?
It is a portable personal strobe for personnel and equipment marking in marine, offshore, diving and industrial work. A clip allows it to be attached to compatible gear.
Which light modes are available?
Yes. The AQ-4 MkII has two modes: flashing for emergency signalling and steady light for inspection or constant illumination. You switch between them on the light itself.
How is it powered and how long does it run?
It runs on one standard 1.5 V C cell and delivers up to 8 hours of runtime in flashing mode. The battery is a common size, so spares are easy to keep in an emergency kit.
What is the waterproof rating?
The AQ-4 MkII is listed as waterproof to 500 metres. Use the operating instructions for the supplied unit when planning its application.
How do I attach and activate the light?
The rear clip attaches to compatible gear. Follow the supplied unit's instructions for the attachment position, mode selection and battery replacement procedure. Vikingegaarden can provide the relevant documentation.
Should I choose a strobe or a fixed marker light?
Choose the AQ-4 MkII for a portable light attached to personnel or equipment. Compare ML marker lights for installed marking on buoys, nets and offshore structures.
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