Howshot Universal Shutter Trigger @photolight A light receiving part is

A light receiving part is attached on front surface of a main strobe which is triggered by a camera signal to transmit main strobe's flash light to a sub strobe via optical fiber to fire the sub strobe simultaneously supporting reliable operation and free from synch problem even in bright area

Perfect for adding a spare modeling light or video light

6" x 7") Weight with battery: 1243 grams (2

surface finishing and assembling method

Optically designed sole use underwater to effectively suppress aberrations in all focus range to deliver high contrast and sharp images despite of shooting distance

Howshot Universal Shutter Trigger @photolight A light receiving part isA universal shutter trigger kit installed on the Howshot grip. When pressing the shutter, your hands do not have to leave the grip, allowing for more stable framing and shooting. For different models of housing, the position of the kit button can be adjusted. Specifications Dimensions: 25 x 21mm (DIA x L) Weight: 23g Material: 316 stainless steel, Plastic.