Sea & Sea Strobe Comparison Chart

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Specification: YS-D1 YS-01 YS-02 YS-110a YS-250Pro
Guide Number
(ISO 100/m land)
Variable: GN 32,
GN 24, GN 20
20 20 22 32
Beam Angle 80°x80°,100°x100°,
120°x120°
100°x100°
(w/diff 110°x110°)
100°x100°
(w/diff 110°x110°)
105°x105°
w/diffuser
105°x105°
(w/diff 115°x115°)
Batteries 4xAA, A:6V,br>NiMH: 4.8V 4xAA, A:6V,br>NiMH: 4.8V 4xAA, A:6V,br>NiMH: 4.8V 4xAA, A:6V,br>NiMH: 4.8V NiMH for YS-250
Number
of Flashes
*1
A: 150, NiMH: 250 A: 230, NiMH: 330 A: 230, NiMH: 330 A: 230, NiMH: 330 200
Recycle Time
(full)
*2
A: 2.8sec
NiMH: 1.9sec
A: 2.5sec
NiMH: 1.9sec
A: 2.5sec
NiMH: 1.9sec
A: 2.5sec
NiMH: 1.9sec
1.8sec
Color Temp 5600°K 5600°K 5600°K 5400°K 5600°K
Color Temp
w/Diffuser
5250°K 5250°K 5250°K 5100°K 5200°K
Depth Rating 100m/330ft 75m/250ft 75m/250ft 60m/200ft 60m/200ft
Dimensions
(W x H x D)
87x135x111mm
3.5x5.4x4.4in
68x108x129mm
2.7x4.3x5.2in XP
68x108x129mm
2.7x4.3x5.2in
88x115x150mm
3.5x4.6x6in
107x130x223mm
4.3x5.2x9in
Weight 650g/22.9oz 505g/17.7oz 505g/17.7oz 700g/24.5oz 1780g/62.3oz
UW Weight TBA -10g/-.4oz -5g/-.2oz -10g/-.4oz -80g/-2.8oz

Other Features
  • DS-TTLII w/EV +/-
  • Slave TTL
  • Light Level Control-
    11 steps
  • Preflash cancellation
  • Slave Function
  • Auto Power Off
  • Fiber Optic Cable Port,
    Sync Cord/N
  • LED Target Light
  • 3 diffusers,
    ball mount included
  • DS-TTL (Slave TTL)
  • Light Level Control-
    10 steps
  • Preflash cancellation
  • Slave Function
  • Auto Power Off
  • Fiber Optic Cable Port
  • LED Target Light
  • DS-TTL (Slave TTL)
  • Light Level Control-
    10 steps
  • Preflash cancellation
  • Slave Function
  • Auto Power Off
  • Fiber Optic Cable Port
  • DS-TTL (Slave TTL)
  • Light Level Control-
    13 steps
  • Preflash cancellation
  • Slave Function
  • Auto Power Off
  • Fiber Optic Cable Port,
    Sync Cord/N
  • LED Target Light
  • DS-TTL (Slave TTL)
  • Light Level Control-
    12 steps
  • Preflash cancellation
  • TTL Confirm Signals
  • Auto Power Off
  • Fiber Optic Cable Port,
    Sync Cord/N
  • LED Target Light

  *1: Flashes and Recycle Time depend upon brand, temperature and frequency of use. *2: NiMH specs based on 2700mAh batteries.