These are pretty cool, depending on paperwork
www.h9waviation.com
STROBE LIGHT FOR EXPERIMENTAL AIRCRAFT - TOP BOTTOM |H9W Aviation
Streamlined polycarbonate lens and duable aluminum body that weighs less than 100 grams per unit. Delivering approximately 2600 lumens in a two-short-flash, one-long-pause sequence achieved through an integrated controller.
www.h9waviation.com