Description
The Kraken KR-S40 Underwater Strobe is a compact, lightweight flash designed to enhance underwater photography with bright, natural-looking illumination in an easy-to-travel package. Featuring a Guide Number of 8 (GN8), the KR-S40 is ideal for compact cameras, smartphone housings, and entry-level mirrorless systems, making it a great choice for divers looking to take their underwater photography beyond the limitations of a built-in flash.
The KR-S40 offers simple operation with manual power adjustment and fiber optic triggering, allowing photographers to capture vibrant colors, improved contrast, and sharper underwater images. Its compact design integrates easily with standard underwater arm systems, and it's available in Pink, Seafoam, and Silver to complement your dive setup.
Key Benefits
-
Compact & Lightweight Design
Perfect for travel and easy handling with compact underwater camera systems. -
GN8 Flash Output
Provides bright, even illumination for macro photography, close-focus wide-angle images, and general underwater photography. -
Fiber Optic Triggering
Reliable optical triggering with compatible underwater camera housings. -
Manual Flash Control
Multiple power settings provide flexibility for different underwater shooting conditions. -
Ideal for Compact Camera Systems
Excellent choice for compact cameras, smartphone housings, and entry-level mirrorless cameras. -
Available in Three Colors
Choose from Pink, Seafoam, or Silver to personalize your underwater camera setup.
Who It's For
- Beginning underwater photographers
- Compact camera users
- Smartphone housing users
- Mirrorless camera users
- Travel divers
- Snorkelers
- Anyone looking for an affordable underwater strobe
What's Included
- Kraken KR-S40 Underwater Strobe
- Diffuser
- Ball mount
- O-ring set
- User documentation
Note: Optical (fiber optic) cable is NOT included.
Key Specifications
- Product Type: Underwater Strobe
- Guide Number: GN8
- Flash Control: Manual
- Trigger Method: Fiber optic
- Optical Cable Included: No (sold separately)
- Power Source: Rechargeable battery
- Mount: Standard 1-inch ball mount
- Available Colors: Pink, Seafoam, Silver
- Use Case: Underwater macro photography, close-focus wide-angle photography, and general underwater photography
- Environment: Saltwater and freshwater compatible
FAQ
Who is the KR-S40 best suited for?
The KR-S40 is ideal for beginning underwater photographers, compact camera users, smartphone housing users, and anyone looking for a lightweight, travel-friendly underwater strobe.
Does it support TTL?
The KR-S40 is designed with manual flash control, allowing photographers to adjust flash output based on their shooting conditions.
How is the strobe triggered?
It uses a fiber optic connection with compatible underwater camera housings.
Is an optical (fiber optic) cable included?
No. An optical (fiber optic) cable is not included and must be purchased separately.
What colors are available?
The Kraken KR-S40 is available in Pink, Seafoam, and Silver.




