I-Divesite Fish-Lite D9 (Intense Macro Spot Light)

Held in one hand or on an arm system will give you very powerful lighting for an ultra-macro project.
And with a powerful rechargeable battery, the D9 is good to go for up to 60 min at full power.
After that, it will drop to 75% so you will have very long burn time for your dive.

Specs:

CREE XML2
10W High Power LED
900 lumen
1 x 18650 Lithium battery (not included)
1-4 hr burn time
18-degree beam angle
3 level white, flash, SOS

5 settings:

100%, 50% and 30%
SOS & Flash modes

YS mount for easy mount on flexarm and battery included.
Delivered in a lite pouch for easy transport and storage.