Safety Strobe

This waterproof signal flash light emits repeating strong flashes which are particularly bright at night. the flashes can be seen from a distance of 3.4 kilometers away.

Specifications:
20-40 flashes/minute
Visibility up to 3.4km.
Waterproof up to 50m.
Velcro arm strap.
Operation 8 hours. 
Flashing intensity 100,000 lumen.
Dimension 40mm x 125mm.
Weight 80g.