$109.95
Out of stock
Fenix SD20 diving light is specifically designed with the diver in mind. A maximum 1000 lumens, 564ft (172m) of beam distance, and waterproof up to 100 meters, allows you to explore the depths with confidence and safety. Easily choose between the different modes with one hand via the rotating magnetic ring on the head of the flashlight. Always know your flashlight’s remaining battery life with the built-in indicator and never lose your light with the bigger button hook and premium included lanyard.
Length: 8.2” (208mm)
Diameter: 1.0” (26mm)
Head: 1.6” (40mm)
8.6 oz. (245g) excluding batteries
Two 18650 rechargeable Li-ion batteries or four CR123A Lithium batteries
Lanyard, spare O-ring, conducting plate* (*Taken between the batteries with flat top.)
Limited Lifetime Guarantee from Fenix Lighting US
Rotate the magnetic ring to select the wanted output level.
From left to right, there are five output levels: Battery level, Red light, Off, Low and High.
When rotating the magnetic ring to the battery level output, there are three states: red light constant-on displays sufficient power level, red light slow flash displays poor battery level, red light quick flash displays critical battery level.
The light will accumulate a lot of heat when it is working at High output. When the light is overheated internally up to 65 ℃ or above, the flashlight will automatically adjust the output to prevent the light from overheating.
Unscrew the tail cap to insert the battery with the anode side (+) towards the light head, and then screw the tail cap.
Reason A: The batteries need replacing.
Solution: Replace batteries (Please confirm the correct installation of anode and cathode).
Reason B: The threads, PCB board contact or other contacts are dirty.
Solution: Clean the contact points with a cotton swab soaked in rubbing alcohol.
If the above methods don’t work, please refer to the warranty policy before contacting your authorized distributor.
Brad –
Outstanding dive light! Have used it over 20 dives both day and night. Light weight, very bright, long run time and easy to handle. Holding up great to the salt water
Jared Romans (verified owner) –
I’ve used my fenix sd20 for 3+ years now as my primary dive light. Double o ring seal, magnetic selection ring, dual leds with DUAL reflectors. It really throws out the brightness. I came to buy one for my new dive buddy. What happend to the sd10? I run it for my backup just cause your supposed to have one. The smaller size a only needing 1 battery kept things smaller and lighter.
William (verified owner) –
This Dive light is absolutely amazing. Did a night dive with this light out in a quarry. Loved the ease of use with being able to switch one handed between each feature. I love how big the beam is. Also there is a red light (great for night vision) that I enjoyed using during the dive and on the surface while setting up. The brightness settings are perfect. This is by far my favorite light. In my opinion this SD20 Dive light out competes competitors lights that are listing in the $300 range. I came up next to my buddies and my beam was just as bright if not brighter than his. The rechargeable batteries are a nice addition as you don’t need to spend money replacing them. Loving this purchase. Definitely recommend this dive light for scuba diving
Brian Aldouri (verified owner) –
Nice flashlight