Underwater Kinetics SL4 eLED MK2 Dive Light Black Review

First Impressions of Underwater Kinetics SL4 eLED MK2 Dive Light Black

The Underwater Kinetics SL4 eLED MK2 Dive Light Black promises a potent combination of power and durability in a compact, dive-ready package. As a seasoned outdoor and tactical gear specialist, I’ve seen countless dive lights come and go, but the reputation of Underwater Kinetics for reliable underwater illumination piqued my interest. This light boasts a 600-lumen output, a 500-foot depth rating, and Underwater Kinetics’s eLED technology – all features that suggest a serious piece of kit.

My need for a reliable backup dive light, one that could withstand demanding conditions and deliver consistent performance, drew me to the SL4 eLED MK2. I’ve lost faith in cheaper options that falter at depth. I also wanted something simple, with an easy on/off switch that won’t fail in the murk.

Upon unboxing, the Underwater Kinetics SL4 eLED MK2 feels solid and substantial. The rubber overmold provides a secure grip, even with wet gloves. It feels like it is ready for any abuse you could throw at it.

Compared to my Princeton Tec Torrent LED (a more focused beam) and my older UK Mini Q40 (smaller, less powerful), the SL4 eLED MK2 aims for a balanced approach. It’s brighter than the Mini Q40 and offers a wider beam than the Torrent, making it potentially more versatile. Ultimately, I chose the SL4 eLED MK2 because of its combination of brand reputation, beam output, depth rating, and seemingly robust construction.

My first impression was one of cautious optimism. It certainly looked the part of a dependable dive light, but the true test would be how it performed underwater. The weight, thanks to the (4) C cell batteries (included), felt right; not too heavy, but substantial enough to inspire confidence.

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Real-World Testing: Putting Underwater Kinetics SL4 eLED MK2 Dive Light Black to the Test

First Use Experience

My initial testing ground for the Underwater Kinetics SL4 eLED MK2 Dive Light Black was a local quarry, known for its murky waters and varying visibility. I conducted several dives, ranging from shallow shore dives to deeper plunges reaching around 40 feet. I wanted to test the light’s performance in both clear and turbid conditions.

The light performed admirably, cutting through the murky water with its 600 lumens. The single-hand switch was easy to operate, even with thick neoprene gloves. The wide beam angle provided excellent situational awareness, illuminating a large area and making navigation easier.

I was initially surprised by how well the light maintained its brightness at depth. Cheaper lights often dim noticeably as pressure increases, but the SL4 eLED MK2 remained consistent. There were no leaks or malfunctions, even after repeated submersion.

Extended Use & Reliability

After several months of regular use, the Underwater Kinetics SL4 eLED MK2 has proven to be a reliable and durable piece of equipment. I’ve used it on numerous dives in various conditions, from freshwater quarries to saltwater reefs. The durability of this dive light has stood the test of time.

The polymer construction shows minimal signs of wear and tear, despite being subjected to bumps, scrapes, and the occasional accidental drop. The rubber overmold has held up well, maintaining its grip and preventing slippage. The reliability is impressive.

Maintenance has been minimal; a simple rinse with freshwater after each dive is all it takes to keep the light in good working order. The battery compartment remains watertight, preventing corrosion. The SL4 eLED MK2 has exceeded my expectations, proving to be a significant upgrade from my previous dive lights.

Breaking Down the Features of Underwater Kinetics SL4 eLED MK2 Dive Light Black

Specifications

The Underwater Kinetics SL4 eLED MK2 Dive Light Black boasts a range of features designed for optimal underwater performance:

• Dimensions: 6.2″ x 1.7″ x 2.5″ – Compact and easy to handle.
• Weight: 15.2oz – Substantial enough to feel durable, yet not overly burdensome.
• Lanyard: Included for secure attachment to wrist or gear. This is an important safety feature.
• Water Resistance: Rated for depths up to 500 feet (152 meters). More than sufficient for recreational diving.
• Impact Resistance: Polymer construction designed to withstand rough handling. Impacts that would destroy cheap lights.
• High Intensity White LED: Provides bright and efficient illumination.
• 600 Lumens: Offers a powerful beam suitable for various underwater conditions. This is plenty of light for most recreational dives.
• 6 Hour Runtime: Provides ample illumination for extended dives.
• 249m Beam Distance: Delivers a focused beam for penetrating murky water.
• Machined Reflector: Creates a bright center spot for improved visibility. Maximizes light output and beam quality.
• Single Hand Switch: Easy to operate, even with gloves. A must-have feature for diving.
• Rubber Overmold: Provides a secure and comfortable grip.
• Requires (4) C Cell Batteries (Included): Readily available power source.
• Polymer Construction: Lightweight and corrosion-resistant.
• Color: Black – A classic and practical choice.

These specifications translate to a dive light that is both powerful and reliable, capable of withstanding the rigors of underwater exploration. The 600-lumen output and 249m beam distance ensure excellent visibility, while the 500-foot depth rating provides peace of mind during deeper dives. The single-hand switch and rubber overmold enhance usability, making the light easy to operate even in challenging conditions.

Performance & Functionality

The Underwater Kinetics SL4 eLED MK2 Dive Light Black excels in its primary function: providing bright and reliable underwater illumination. The 600-lumen output is more than adequate for most recreational diving scenarios, cutting through murky water and illuminating dark crevices. The beam is focused enough to provide good penetration, yet wide enough to offer excellent situational awareness.

The light’s main strength lies in its consistency. The switch is simple and reliable, and the light maintains its brightness throughout the dive. There are no complicated settings or modes to fumble with underwater.

One potential area for improvement would be the addition of a low-power mode to extend battery life, but at 6 hours runtime it is adequate for most diving scenarios.

Design & Ergonomics

The design of the Underwater Kinetics SL4 eLED MK2 is functional and straightforward. The polymer construction keeps the weight manageable, while the rubber overmold provides a secure and comfortable grip. The light feels well-balanced in hand, making it easy to maneuver underwater.

The single-hand switch is a standout feature, allowing for easy operation even with thick gloves. There is virtually no learning curve. The lanyard attachment point is sturdy and well-placed.

Durability & Maintenance

The Underwater Kinetics SL4 eLED MK2 is built to last. The polymer construction and robust design can withstand the rigors of diving, including impacts, pressure, and saltwater exposure. The 500-foot depth rating provides ample protection against leaks.

Maintenance is minimal; a simple rinse with freshwater after each dive is all that’s required. The battery compartment is easily accessible for battery changes.

Accessories and Customization Options

The Underwater Kinetics SL4 eLED MK2 Dive Light Black comes standard with a lanyard. Beyond that, customization options are limited, as it’s designed as a self-contained unit. However, its simplicity is part of its appeal.

It is compatible with standard C cell batteries, making replacement easy and convenient.

Pros and Cons of Underwater Kinetics SL4 eLED MK2 Dive Light Black

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Who Should Buy Underwater Kinetics SL4 eLED MK2 Dive Light Black?

The Underwater Kinetics SL4 eLED MK2 Dive Light Black is perfect for recreational divers, dive instructors, and anyone needing a reliable and durable underwater light. It’s also a good option for commercial divers on a budget.

Those looking for advanced features like adjustable beams or multiple light modes might want to consider other options.

A must-have accessory is a good quality set of rechargeable C cell batteries to save on costs over time.

Conclusion on Underwater Kinetics SL4 eLED MK2 Dive Light Black

The Underwater Kinetics SL4 eLED MK2 Dive Light Black delivers on its promise of providing bright, reliable, and durable underwater illumination. Its robust construction, simple operation, and powerful output make it an excellent choice for recreational divers and anyone needing a dependable dive light.

At $125.00, the price is justified by the light’s performance and durability. It’s a worthwhile investment for anyone serious about diving.

I would wholeheartedly recommend the Underwater Kinetics SL4 eLED MK2 Dive Light Black to anyone seeking a reliable and straightforward dive light. Dive in and experience the difference!