GT-PRO Fotocore Underwater Strobe

GT-PRO Fotocore Underwater Strobe

The Fotocore GT-PRO underwater strobe is designed for photographers shooting fast-paced wide-angle images where lighting consistency is critical. With extremely short recycle times, high continuous power, and a circular flash tube providing wide coverage, the GT-PRO keeps up with the most action-packed dives.

This strobe is ideal for rapid sequences such as schools of fish, fast-moving subjects, or reef scenes, maintaining synchronization of up to 10 frames per second.

Warning: the GT-PRO is a 100% manual strobe. It does not support S-TTL or TTL modes.

A tool designed for experienced photographers

For photographers familiar with manual strobe control, the GT-PRO delivers powerful, stable, and highly predictable lighting performance. It is not intended for users expecting camera-controlled automatic exposure.

• Ideal for: wide-angle photography, fast action, burst shooting
• Not suitable for: photographers using TTL or S-TTL
• Ultra-fast recycle times: 0.1 to 1 second
• 160 Ws power with uniform wide-angle coverage

Direct and intuitive underwater controls

The GT-PRO’s physical controls are designed for easy operation, even with thick dry gloves, allowing quick power adjustments without navigating complex menus.

• Controls easily identifiable by touch
• No menu navigation underwater
• Precise and deliberate manual exposure control

Consistent and repeatable lighting output

The GT-PRO is valued for its consistent light output, making it easier to balance dual-strobe setups and ensuring reliable results shot after shot.

• Predictable lighting behavior
• Ideal for single or dual strobe configurations
• Suitable for wide-angle and macro photography

Compatible with standard arm systems

The GT-PRO is compatible with standard ball-arm systems commonly used with underwater camera housings.

• Easy mounting on standard arms
• Suitable for single or dual strobe setups

Perfect for

• Wide-angle reef and wreck photography
• Macro photographers who prefer manual control
• Users upgrading from entry-level strobes
• Travel setups where consistency matters more than automation

Technical specifications

• Model: GT-PRO
• Modes: 9 modes
• Guide number: 24
• Flash tube: circular flash tube
• Power: 160 Ws
• Connection: optical cable / 6-pin
• Beam angle: 160°–110° (reduction ring)
• Battery: Fotocore battery (4 x 18650 lithium cells)
• Battery capacity: 25.2 Wh
• Output: 650 full-power flashes / 6000 flashes at mode 1
• Recycle time: 0.1 to 1 s
• Flash rate: up to 10 flashes per second
• Indicator: LCD screen
• Color temperature: 5000 K
• Depth rating: 100 m
• Focus light: 30 W / 3000 lumens – 3 modes
• Dimensions: 142 × 92 mm
• Weight (on land): 1210 g without battery

What’s included

• GT-PRO underwater strobe
• Battery
• Reduction ring
• Charger
• User manual

TTL: not compatible with S-TTL / TTL
Note: all parameters are based on the Fotocore testing standard.