Detail information:

YS-D3

YS-D3 LIGHTNING
[Guide Number (ISO 100/m) (land)] : 33, 28 (with Diffuser attached)
[Beam Angle] : 105°x80°  (without Diffuser), 110°x100°(with Diffuser)
[Batteries] : 4xAA A: 6V Ni-MH: 4.8V
[Number of Flashes *1] : A: 140 Ni-MH: 220
[Recycle time (full) *2] : A: 3.5 sec. Ni-MH: 1.7 sec.
[Color temperature] : 5800K
[Color temperature w/diffuser] : 5500K
[Depth rating] : 100m  / 330ft
[Dimensions (WxHxD)] : 92x111x147mm / 3.6 x 4.4 x 5.8 inches (excluding ball base)
[Weight] : 610g / 21.5oz (w/o batteries) (excluding ball base)
[Underwater weight] :  Approx.-20g / -0.7oz (incl. batteries ball base)
[Others]
Exposure control: DS-TTL II,  Slave TTL, Light level control dial (GN): 1/1.4/2/2.8/4/5.6/8/11/16/22/33 (11 steps)
 
DS-TTL II function
Slave function
Auto power OFF function 30min
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 2500 mAh batteries.