[Bertie]

Aquí una comparativa: http://www.pbo.co.uk/gear/led-laser-flares-tested-36341

Pero lo interesante es esto. Más o menos, dicen que en la práctica las bengalas sólo sirven para precisar tu posición una vez que los medios de rescate ya están cerca.

Questions still remain about what exactly flares are for these days. With a VHF radio to contact the coastguard (and a handheld VHF as a backup in case of rigging loss or electronics failure), a handheld flare’s use is really only to help pinpoint your position to a lifeboat or rescuer. None of the electric flares was comparable in power and visibility to a pyrotechnic flare, but all were visible from 5 miles out, assuming you were looking for them. The SOS flash helps here. With a lifeboat on the way, setting off one of the two LED flares and letting the lifeboat crew know to look for a flashing red signal would be an effective way of doing things.


Read more at http://www.pbo.co.uk/gear/led-laser-...IBzPFwosH8l.99