SEA&SEA Underwater Strobe YS-D3 MKⅡ A strobe that pursues high power, wide beam angle, and light quality Increased light output of the target light The aluminum heat dissipation ring, which is also an accent of the exterior design, efficiently dissipates heat, increasing the light output to the point where it functions as a dive light. * Approximately 4 times the light output compared to the previous model YS-D2 (two-step dimming 300 lumens / 150 lumens) Hardly used. Batteries are not included. Thank you. 【Please confirm before purchase】 In previous transactions, there have been differences in the understanding of accessories, so we have added this to make it clearer. All items shown in the photos are included. Items not shown in the photos are not included. Please be sure to check for any questions before purchasing. This is a request to ensure that everyone can trade with peace of mind. Thank you for your understanding.