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SEA & SEA YS-D3 Lightning with Free DiveCatalog's Coil Lanyard

Sea & Sea  |  SKU: SS-03123-COIL
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Product Information

The Sea & Sea YS-D3 MKII LIGHTNING is an underwater strobe rated to 100m / 330ft with a Guide Number of 33 (28 with the diffuser attached). This listing does not include the Fiber-Optic Cable.

Who it is for

It suits underwater photographers shooting through a Sea&Sea or third-party optical TTL converter, since the YS-D3 MKII LIGHTNING carries a newly designed circuit that improves TTL accuracy and converter compatibility over the original YS-D3 LIGHTNING, while keeping the same product number (03123) as a running change update.

Key details

  • Guide Number 33, or 28 with the diffuser attached, ISO 100/m on land
  • Beam angle 80°x105° without diffuser, 100°x110° with diffuser, and 150°x170° with the optional Dome Diffuser
  • Runs on 4x AA batteries: 6V with alkaline, 4.8V with Ni-MH
  • 140 flashes on alkaline batteries, 220 flashes on Ni-MH batteries, with a full recycle time of 3.5 seconds (alkaline) or 1.7 seconds (Ni-MH)
  • Color temperature 5800K without the diffuser, 5500K with it
  • Depth rated to 100m / 330ft
  • Dimensions 92x111x147mm (3.6 x 4.4 x 5.8 inches) and weight 610g / 21.5oz without batteries, both excluding the ball base; underwater weight is approximately -20g with batteries and ball base installed
  • 11-step light level control dial, DS-TTL II and Slave TTL exposure control, 30-minute auto power off, and an LED target light adjustable between 300 and 150 lumen

Compatibility and sizing

The strobe connects via a 5-pin Sync cord/N or a Fiber-Optic Cable, though this listing does not include the Fiber-Optic Cable. It mounts on the included standard ball base and is also compatible with the optional YS Base and the Diagonal Ball Base (YS-D3 series only), plus optional Snoot and Dome Diffuser accessories.

What's in the box

  • Strobe unit
  • Ball Mount Strobe Adaptor
  • Diffuser
  • Silicone grease
  • DiveCatalog Quick Release Coil Lanyard with Buckle, bundled by DiveCatalog

DiveCatalog.com is an authorized Sea & Sea dealer and a dive shop in Irvine, California, since 2003. Call or chat with us at 888-701-4017 if you have questions about fit, cable compatibility, or accessory options for this strobe.

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Frequently Asked Questions

Does this YS-D3 MKII LIGHTNING come with the Fiber-Optic Cable?

No, this DiveCatalog listing does not include the Fiber-Optic Cable. The strobe can be triggered through a 5-pin Sync cord/N or a Fiber-Optic Cable. The box holds the strobe unit, Ball Mount Strobe Adaptor, Diffuser, silicone grease and DiveCatalog's Coil Lanyard, so source a Fiber-Optic Cable separately.

What batteries does the YS-D3 MKII LIGHTNING use and how many flashes do they last?

It runs on 4x AA batteries, 6V with alkaline or 4.8V with Ni-MH. Alkaline batteries deliver about 140 flashes with a 3.5 second full recycle time, while Ni-MH batteries deliver about 220 flashes with a faster 1.7 second recycle time.

How is the YS-D3 MKII LIGHTNING different from the original YS-D3 LIGHTNING?

It is a running change update, so the product number (03123) stayed the same. The MKII version uses a newly designed circuit and aspherical optical toroidal lens that improve TTL light intensity accuracy and compatibility with Sea&Sea and third-party optical TTL converters, while keeping the same Guide Number, beam angle, and depth rating as the original.