Streamlight SL-20L Full-Size Rechargeable Fla Review

First Thoughts on the Streamlight SL-20L Full-Size Rechargeable Fla

The Streamlight SL-20L Full-Size Rechargeable Fla is a classic, professional-grade flashlight that promises robust performance and reliability. Manufactured by Streamlight, a company known for its durable and high-quality lighting solutions, the SL-20L aims to deliver a powerful beam in a rugged package.

My need for a dependable, rechargeable flashlight stemmed from years of using disposable battery-powered lights in demanding outdoor situations. I was tired of constantly replacing batteries and wanted a light that could withstand the rigors of tactical training exercises and extended wilderness trips.

Upon unboxing the Streamlight SL-20L Full-Size Rechargeable Fla, I was immediately struck by its solid construction and substantial feel. The anodized aluminum body felt incredibly durable, and the knurled barrel provided a confident grip, even with gloved hands. Compared to slimmer, more modern LED flashlights, the SL-20L felt reassuringly robust, reminiscent of the classic metal flashlights I used in my early days. I ultimately picked this over the smaller more EDC-oriented lights I had been using, such as a ThruNite Archer 1A V3, because I needed a full-size flashlight with greater throw distance for search and rescue exercises. I also passed over the Fenix PD36R due to its plastic parts.

My first impression was one of excitement tempered with a bit of nostalgia; the Streamlight SL-20L Full-Size Rechargeable Fla felt like a throwback to a simpler time, but with the added benefit of modern LED technology. I was eager to put it to the test and see if it could live up to its promise of professional-grade performance.

Real-World Testing: Putting Streamlight SL-20L Full-Size Rechargeable Fla to the Test

First Use Experience

I initially tested the Streamlight SL-20L Full-Size Rechargeable Fla during a night navigation exercise in a dense, wooded area. The flashlight’s focused beam cut through the darkness with impressive clarity, allowing me to easily identify landmarks and navigate the terrain. It rained most of the evening, but the IPX4 water resistance ensured the flashlight performed flawlessly, without any flickering or dimming.

The push-button switch was easy to operate, even with wet gloves, and the different modes (high, medium, low, strobe) provided versatility for various lighting needs. One minor issue I noticed was the slight heft of the flashlight after prolonged use, but the comfortable grip helped mitigate the fatigue.

Extended Use & Reliability

After several months of consistent use, the Streamlight SL-20L Full-Size Rechargeable Fla has proven to be remarkably reliable and durable. Despite being dropped multiple times on hard surfaces, the aluminum body shows only minor cosmetic wear. Cleaning is straightforward, requiring only a quick wipe-down with a damp cloth to remove dirt and grime. The battery life has remained consistent, providing ample runtime for extended operations.

Compared to previous lights I’ve used, the Streamlight SL-20L Full-Size Rechargeable Fla outperforms them in terms of beam distance, durability, and battery longevity. It’s not the lightest or most compact option, but its robust construction and powerful performance make it a worthwhile trade-off.

Breaking Down the Features of Streamlight SL-20L Full-Size Rechargeable Fla

Specifications

• Battery Type: NiMH. This provides a good balance of power, lifespan, and environmental friendliness compared to older NiCd options.
• Charger: 12V DC. This allows for convenient charging in vehicles, essential for first responders and field operations.
• C4® LED Technology: Streamlight’s proprietary LED technology delivers a bright, focused beam with a long lifespan. The 50,000-hour lifespan is a significant advantage, reducing the need for frequent bulb replacements.
• Deep-Dish Parabolic Reflector: This enhances the throw distance of the beam, making it ideal for long-range illumination. The tight beam with optimum peripheral illumination provides both focused and wide-area lighting.
• Multi-Function, Push-Button Switch: The switch allows for easy selection of high, medium, low, or strobe modes. This provides versatility for different lighting needs, from close-up tasks to signaling.
• Four Modes: The Streamlight SL-20L Full-Size Rechargeable Fla includes:
  • High: 350 Lumens, 60,000 candela peak beam intensity, 2-hour runtime. This mode offers maximum brightness for long-range visibility.
  • Medium: 160 Lumens, 27,000 candela peak beam intensity, 4-hour runtime. This is a balanced mode for general use, providing a good combination of brightness and runtime.
  • Low: 10 Lumens, 1,000 candela peak beam intensity, 50-hour runtime. This mode is ideal for close-up tasks and preserving battery life.
  • Strobe: 4-hour runtime. This mode is useful for signaling and disorienting potential threats.
• Illuminated Switch Housing: This feature indicates the charge status of the battery. This allows users to easily monitor the battery level and avoid unexpected power loss.
• Optimized Electronics: This provides regulated intensity throughout the battery charge. This ensures consistent brightness even as the battery drains.
• NiMH Battery Rechargeable Up to 1,000 Times: This provides long-term cost savings and reduces waste compared to disposable batteries. The ability to recharge the battery multiple times makes it a sustainable option.
• Fully Recharges in 7 Hours: A relatively quick recharge time ensures the flashlight is ready for use when needed. The 7-hour recharge time is reasonable for the battery capacity.
• Fits SL Series Charger-Holders: Compatible with various charging options for flexible charging solutions. This allows users to charge the flashlight in a variety of settings.
• Anodized Machined Aluminum Construction: Provides exceptional durability and resistance to corrosion. The knurled barrel ensures a secure grip.
• IPX4 Water Resistant: Protects the flashlight from splashes and light rain. This makes it suitable for use in wet conditions.
• Unbreakable Polycarbonate Lens with Scratch-Resistant Coating: Ensures long-lasting clarity and protection from damage. The lens is designed to withstand impacts and scratches.
• 2 Meter Impact Resistance Tested: Demonstrates the flashlight’s ability to withstand drops and impacts without damage. This makes it suitable for demanding environments.
• Serialized for Positive Identification: Helps prevent theft and ensures traceability. The serial number allows for easy identification and tracking of the flashlight.
• Dimensions: 13.1 inches (33.3 cm). This full-size format provides a good balance of throw distance and grip comfort.
• Weight: 1.7 lbs. (0.77 kg). This robust weight reflects the durable construction.
• Limited Lifetime Warranty: Provides peace of mind and demonstrates the manufacturer’s confidence in the product. The warranty covers defects in materials and workmanship.
• Assembled in USA: Ensures high-quality construction and supports domestic manufacturing. This can be a selling point for customers who prefer products made in the USA.

Performance & Functionality

The Streamlight SL-20L Full-Size Rechargeable Fla excels in its primary function: providing a powerful and reliable source of illumination. The focused beam offers excellent throw distance, making it ideal for search and rescue operations, security patrols, and general outdoor use. The multiple modes provide versatility for different lighting needs. The runtime on each setting is accurate based on my testing.

One area for potential improvement is the weight; while the robust construction is appreciated, a lighter design would reduce fatigue during prolonged use.

Design & Ergonomics

The Streamlight SL-20L Full-Size Rechargeable Fla features a classic, no-nonsense design that prioritizes functionality over aesthetics. The anodized aluminum body is both durable and comfortable to hold, and the knurled barrel provides a secure grip. The push-button switch is easy to operate, even with gloved hands.

There is no real learning curve. Anyone can use this light right out of the box.

Durability & Maintenance

The Streamlight SL-20L Full-Size Rechargeable Fla is built to last, with its rugged aluminum construction and impact-resistant lens. Maintenance is simple, requiring only occasional cleaning to remove dirt and grime. The rechargeable battery provides long-term cost savings and reduces waste.

This light should last for years, as long as it is properly cared for and maintained.

Accessories and Customization Options

The Streamlight SL-20L Full-Size Rechargeable Fla comes with a 12V DC charging cord and is compatible with SL series charger-holders. There are limited customization options beyond this, as the focus is on rugged reliability rather than modularity. However, the compatibility with existing Streamlight charging systems is a significant advantage.

Pros and Cons of Streamlight SL-20L Full-Size Rechargeable Fla

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Who Should Buy Streamlight SL-20L Full-Size Rechargeable Fla?

The Streamlight SL-20L Full-Size Rechargeable Fla is perfect for law enforcement officers, security personnel, search and rescue teams, and anyone who needs a durable and reliable high-performance flashlight. This light is also ideal for homeowners needing a strong and durable light for power outages.

This flashlight might not be ideal for those who prioritize lightweight portability above all else, such as ultralight backpackers.

A must-have accessory is a compatible Streamlight charger holder for convenient charging in vehicles or at home.

Conclusion on Streamlight SL-20L Full-Size Rechargeable Fla

The Streamlight SL-20L Full-Size Rechargeable Fla is a classic, professional-grade flashlight that delivers on its promise of robust performance and reliability. While it may not be the lightest or most modern option on the market, its exceptional beam distance, durable construction, and versatile features make it a worthwhile investment for those who need a dependable light source.

At $136.49, the price is justified by the quality and longevity of the product.

I would wholeheartedly recommend the Streamlight SL-20L Full-Size Rechargeable Fla to anyone seeking a durable and high-performing flashlight for demanding applications. Invest in a Streamlight SL-20L Full-Size Rechargeable Fla today and experience the difference that quality and reliability can make.

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