INON S-220 S-TTL underwater strobe

INON S-220 is a very compact and powerful underwaterstrobe with a GN of 22, S-TTL, 12 steps manual flash mode, EV controller to fine-tune the S-TTL auto exposure and a wide beam. The S-220 strobe auto detects the pre-flash number.
There is a large dial controller to easy operate your S-220 strobe. The display is also phosphorescent for better visability. Newely introduced is the double o-ring seal for the batterybox. 

There is a variety bayonet mount filters to enhance your creativity and the S-220 is also compatible with other INON accessories. 

Specifications:

• Compact body yet delivers GN22
• Equipped with a fly-eye dome lens enabling super wide underwater beam angle of horizontal 140°×vertical 100°
• Reliable and proven "S-TTL Auto" and 12-step "Manual Flash
• Large wheel dial for dramatically improved operability. A phosphorescent panel for easy readability
• Double O-rings greatly reduce the risk of flooding
• Front positioned base contributes more flexible lighting
• Operates on four AA batteries, readily available and reasonably priced
• Compatible with various strobe dome filters
• Supports "Quick Holder" for easy one-touch attachment/detachment