Great for use on small mirrorless cameras. I used it on my Panasonic Lumix GH5. Worked perfectly for lighting and fill flash.

Compatible with Canon Nikon Sony Fujifilm Lumix The i400 is a simple clip-on strobe with three light-firing modes: fully auto, TTL, and manual. Simple to operate. By simply turning the dial To change the light emission mode, simply turn the mode dial, and to change the light emission amount, simply turn the light intensity dial. It can be operated intuitively. The light intensity can be adjusted in 1/2EV steps for TTL dimming and 1EV steps for manual dimming. Maximum GN40 (at ISO 100/m and irradiation angle 105 mm) Although it is a small body, the guide number is up to 40. It is a clip-on strobe with a small size but a powerful amount of light. Light-emitting head rotation angle of 180 degrees left and right and 90 degrees upward The light-emitting head can be moved 90 degrees upward and 180 degrees left and right. Powered with 4 AA batteries. despite its small size. \

• Lithium-ion batteries cannot be used. \
• The i400 does not have a built-in radio wave receiver function. Compatible with high-speed sync (HSS) and rear-curtain sync* It also supports "high-speed sync" that allows the use of a flash even at high-speed shutter conditions, and "rear-curtain sync" that is effective for expressions such as long exposures. \
• When firing light in high-speed sync mode, the minimum light intensity is limited to 1/32. If the light intensity is set to less than 1/32 and the light is emitted, the light will be emitted at 1/32 the light intensity. \
• Built-in catch light panel and wide angle panel.