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Retra Flash Pro Underwater Strobe

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Retra Flash Pro Underwater Strobe

Retra is dedicated to achieve the best underwater strobe on the planet. The new Retra Strobe comes in two versions, the Retra Flash Prime and the Retra Flash Pro strobe. Both were designed with more intuitive controls, warm 4800K light output and built-in leak detection. While the Prime strobe produces 100Ws of power, the Pro strobe produces 150 Ws!

Focus on quality of light

The Retra Flash is the world's first underwater flashgun with a fully circular flash tube. Combined with a completely new reflector design it produces a high quality light output no other flashgun this size can offer. It's not all about guide numbers.

User interface made by photographers

Controls are large and tactile, for all types of hands or gloves. You will always get what you expect with the new Retra Flash. The new Retra Flash connects via bluetooth to your smartphone or tablet (patent pending technology). Check the status of your flashgun, set advanced features (HSS, Smart SL, Pilot Adjust...) and make firmware updates with the new Retra Flash and the free Retra UWT App. Available to download on the App Store and Google Play.

Double o-ring and leakage detection

The new Retra Flash is the world's only underwater flashgun with a built-in leakage detector (patent pending technology). In the unlikely event of a battery compartment flood you will be notified by the Retra Flash to check the battery compartment at your earliest convenience. Retra's goal is to reach a 0% statistic in damage resulting from battery compartment flooding

Design your light without boundaries

Securely attached via bayonet mount there are many accessories available for the new Retra Flash. The most prominent is the LSD Ultimate. With a super powerful centrally positioned pilot light you will be able to find your light spot even in very bright conditions. Other accessories that attach via the bayonet mount include: diffusers for blue water, green water and a special diffuser for sharks. 


New Retra Flash PRO

Flash power:
150 Ws

Color temperature:


~4900 K

Pilot light power (angle):

500 lm (20º)

Recycle time until 80% power(*): ~3 s
Recycle time until 40% power(*):
~1,5 s
Number of flash at full power(*):

Number of flash at half power(*):

(*) with 4x AA eneloop pro

Multi-level battery indicator: YES

HSS ready:


Power levels: 13

Bayonet mount type:


Electrical connector: via Converter
Optical connector (Compatible with Inon and Sea&Sea type plugs): YES
Diameter x length (mm) 102.5 x 130
Weight (without batteries, including 1" Mounting ball): 790 g
Depth rating:
-100 m
Bluetooth connectivity: YES
Leakage detector: YES
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