The LP 02 light is designed for deep sea fishing and deep trolling.
Ideal for swordfish, grouper, snapper, shark and any other fish .
It can be used up to up to 3000 feet of depth. 
The removable strobe light's insert is operated by  a type C battery
which it will last approx 20 hours. 
In the LP 02 configuration, the light is equipped with fins which can be used with weights as per pictures ( click) . Each weight set weighs 2.2 lb.
The use of only one fin  prevents the light from rotating onto itself in high current. It might be used as a teaser or a planer when trolling. 
Very versatile, the light can be used with or without the weights
 in many different combinations.