Fenix SD20 1000lm diving light review: Pros and Cons

The Fenix SD20 diving light released in 2017. It uses 1 x Cree XM-L2 LED, 1x Cree XQE RED LED, SMO reflector and 2 x 18650 Li-Ion batteries. The powerful emitter in this diving light provides up to 1000 lm output, 7400 cd intensity, and a beam distance of 172 m.

Table of Contents

• Fenix SD20 specifications
  • Body, materials, weight, colors
  • System, LED, lens, reflector
  • Performance, flux, intensity, throw
  • Software, user interface, modes
  • Features, battery, protections
  • Accessories, package contents
• Conclusion, pros and cons
• Photos

The content of this article reflects our own experiences and viewpoints. We aim to offer insights on a topic, and we hope others find it helpful and motivating. Additionally, we make every effort to provide accurate and comprehensive coverage. If you found an error or something lacking in the specifications for the Fenix SD20, then tell us.

This light has 2 modes of lighting. Without mode memory, this flashlight always starts in the default mode.

Fenix SD20 specifications

Body, materials, weight, colors

The heavier flashlight may be tiring to hold for a long time. It may also be unsuitable for activities that need light weight. The best flashlight size depends on personal preference. It also depends on intended use and the specific features you want. The aluminum bodies can be anodized. This adds a protective layer and a wide range of color options for flashlight bodies. Flashlight makers widely use HAIII coating. It is durable, resists corrosion, and improves grip. It also looks good. This flashlight features a captivating black color.

System, LED, lens, reflector

Cree is widely regarded as a reputable LED manufacturer. Warm, white light is generally more comfortable. It's also less harsh on the eyes than cool, white light. If you need long-range light, get a flashlight with a smooth reflector. It will have more throw distance. The AR coating on the lens maximizes light transmission. This makes the flashlight more effective in darker environments.

Performance, flux, intensity, throw

The 1000 lm output of SD20 provides great flexibility. You can adjust the brightness to fit different needs. The SD20 flashlight has 7400 cd. It provides a much brighter and more intense beam. The throw distance is the farthest distance the flashlight can light an object. Candela per lumen (cd/lm) measures a flashlight's beam intensity. It compares this to its total luminous flux or output.

Software, user interface, modes

A flashlight's modes are different output settings or brightness levels. They can be chosen to meet different needs and preferences.

Features, battery, protections

The SD20 flashlight's power source is 2 x 18650 Li-Ion batteries. It provides reliable, long-lasting energy for top performance. The battery indicator prevents surprise power failures. It ensures the flashlight is ready when needed. The SD20 doesn't have charger port. The Low Voltage Protection helps save the battery's capacity. It stops it from reaching a critically low voltage. The thermal protection feature helps prevent overheating. Overheating can harm the flashlight's performance, battery, and safety.

Accessories, package contents

The lanyard of the SD20 protects the flashlight from accidental damage. It does this by stopping it from falling or hitting the ground. When using spare O-rings, follow the maker's instructions. Use their guidelines for proper installation.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the SD20 flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

Photos

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by David Hagon

I love bushcraft and flashlights. I find joy in mastering wilderness survival skills and exploring the realm of illuminating gadgets. Bushcraft isn't just fun, it's a learning journey. I form a strong bond with nature. It's more than a hobby, it enriches me in practical and spiritual ways.