Description

The FOTOCORE GTM Strobe is built for underwater photographers who demand reliable, powerful flash in a compact package. With 120Ws of power, a circular flash tube, and 7 power modes, it gives you full control over your lighting — from subtle fill to punchy key light — across wide-angle reef shots and close-focus subjects alike. The integrated 5W/500-lumen focus light helps nail your subject in low-visibility conditions, while the LCD power indicator takes the guesswork out of battery management on every dive.

✅Specifications

Model: GTM
Power: 120Ws
Modes: 7
Guide Number: 24
Flash Tube: Circular
Connection: Optical cable
Illumination Angle: 160° (110° with reduction ring)
Battery: 2×18650 lithium (25.2Wh FOTOCORE pack)
Flash Capacity: 800 at full power / 5,000 at 1st mode
Recycle Time: 0.1s–1s
Continuous Sync: Up to 10 fps (modes 1–3)
Color Temperature: 5000K
Focus Light: 5W / 500 lumens (center focus)
Waterproof Depth: 100m
Dimensions: 118×75mm
Weight: 815g (without battery)
Colors: Black / Blue / Purple
TTL/S-TTL: Not supported

Recycle time of 0.1–1 second keeps pace with fast-moving subjects, and the continuous unlimited sync at up to 10 flashes/sec in the first three modes means you won’t miss the shot. Rated to 100m depth with a 160° illumination angle (reducible to 110° with the included reduction ring), the GTM is a versatile tool for both wide and macro work. Available in Black, Blue, and Purple — so it stands out on your rig and looks good doing it.