Godox Retro Lux Junior Green: A Compact Flash Unit with Basic Functions The Godox Retro Lux Junior Green is designed to give you a small light source encompassing all the essential functions. It's a flash unit ready for usage at any time, offering you the choice of manual or automatic flash modes. This compact flash unit features a simple dial that melds ISO settings, aperture, power, and shooting distance into one. Furthermore, an automatic setting is also provided. Unique to the Godox Retro Lux Junior series are the S1 and S2 flash modes. In S1 mode, the flash is triggered in response to another manual or TTL flash. Conversely, the S2 mode instructs the Retro flash to ignore the initial flash. Furthermore, this flash unit is compatible with multiple camera brands, including Fujifilm, Canon, Nikon, Olympus, and Sony. Main Features of the Godox Retro Lux Junior Power, ISO, Stops, Distance-setting dial Guide number: 12 at ISO 100 Adjustable power from 1/1 to 1/64 Powered by AAA batteries Manual & automatic modes, fixed 28mm-coverage What's in the Box? Godox Retro Lux Junior Trigger cable Storage bag