- [Guide Number (ISO 100/m) (land)] : 32, 24 (with Diffuser 100 attached), 20 (with Diffuser 120 attached)
- [Beam Angle] : 80°x80° (without Diffuser), 100°x100°(Diffuser 100), 120° x 120° (Diffuser 120)
- [Batteries] : 4xAA A: 6V Ni-MH: 4.8V
- [Number of Flashes *1] : A: 150 Ni-MH: 200
- [Recycle time (full) *2] : A: 3.0 sec. Ni-MH: 1.5 sec.
- [Color temperature] : 5600K
- [Color temperature w/diffuser] : 5250K
- [Depth rating] : 100m / 330ft
- [Dimensions (WxHxD)] （Excluding protruding part(s) and the arm holder.）: 89x133x116mm / 3.5 x 5.2 x 4.6 inches (incl. YS base but excluding protruding parts)
- [Weight] : 623g / 22.0oz (w/o batteries) (inc. YS-mount and fixing bolt. Without batteries)
- [Underwater weight] : Approx.+40g / 1.4oz (incl. batteries)
- Exposure control: DS-TTL II, Slave TTL, Light level control dial (GN): 1 / 1.4 / 2 / 2.8 /4 / 5.6 /8 / 11 / 16 / 22 / 32 (11 steps)
- Pre-flash control: Equipped with pre-flash cancel mode
- DS-TTL II function
- Slave function
- Auto power OFF function
- Sync cord: 5-pin Sync cord/N, Fiber-Optic Cable
- Over-pressure relief valve
- LED target light (output is adjustable in 2 steps)
- Audible charge signal
*1 Number of flashes and recycle time depends on the battery brand, temperature and frequency of use.
*2 Number of flashes and recycle time of Ni-MH batteries were tested on 2400 mAh batteries.