Sea & Sea Strobe Comparison Chart

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