Q1. What is the product positioning of SD20 and who are the target customers?

A: Fenix SD20 is designed for various underwater illuminating, with a max 1000-lumen output , rotating magnetic ring for switching ON/OFF and three output selection, and plus battery level indicator, SD20 is ideal for hunting, deep-sea exploration and underwater nightlife observing, etc.

Q2. What are the key features and benefits of SD20?

a) 100-meter submersible

b) Rotating magnetic ring for one-hand control

c) Battery level indicator

d) Dual layer body tube design

Q3. What kind of battery does SD20 use?

A: SD20 not only supports two 18650 rechargeable Li-ion batteries, but also compatible with four CR123A Li-ion batteries. When use the 18650 battery with flat top, you should take the included conducting plat between the batteries to make sure the circuit is well connected.

Q4. What’s the working voltage range of SD20?

A: The normal working voltage range of SD20 is 6.5-12V, the limited working voltage is 6.0-12V. 

Q5. Will SD20 downshift output levels in High?

A: No, it won’t. With the intelligent over-heat protection, when the light is overheated internally up to 65 ℃ or above, the light will automatically adjust the output to prevent the light from overheating. And then it will automatically increase the output to previous level gradually when the temperature is below 65 ℃.