The Nissin i40, which easily fits in your pocket, weighs just 203 grams
(Without batteries.) The flash is great for brightening shadows even in bright sunlight, as well as for family, indoor and outdoor photography, and especially for travel. In addition, it offers the following professional user features:

Wireless TTL mode;
Short shutter speeds up to 1 / 8,000 seconds;
40-digit light (GN) light output at 105 mm;
Nine power levels of video lighting function;
Simple interface with two adjustment dials;

The flash head can be tilted up and rotated left and right for indirect flashes at various angles.
Light box attachment (Soft box) included.

- Wireless mode: Wireless TTL slave, non-TTL Slave SD, SF mode
- Charging time: (Full Power)
- Alkaline, NiMH (4xAA) 0.1-4s
- Number of flashes: Approx. 200-1700, depending on power
- LED Video Lighting
- Time Approx. 3.5 hours (adjustable in 9 steps)
- Control panel 2 turntable Function and Power dials
- Power protection: Switches to standby after 5 minutes, switches off after 30 minutes
- Color temperature: 5600 K
- AF-assist illuminator: Infrared LED, range 0.7-5m
- Flash speed: TTL 1 / 800-1 / 20000sec
- Flash head adjustment: 0, 45, 60, 75 90 ° up, 180 °
- Wide Angle Ballast: Yes, 16mm
- Zoom: Auto 24-105mm (manual 28, 35, 50, 70, 85, 105)
- 16mm when using the built-in diffuser