Electro-magnetic Pulse Effects on LED stuffs

Destroid Monster · Jan 10, 2004

I realised that I am relying more on LED stuffs due to their energy efficiency & reliability...I am the pround owner of the Surefire L4, ArcLS & other LED stuffs. /ubbthreads/images/graemlins/grin.gif But I am hesitative to go all out into LED-based lightning & I'm still clinging onto my fav incan M2. /ubbthreads/images/graemlins/crazy.gif

My concern is that Electro-Magnetic Pulse (EMP) might render our expensive LED based investment with or without an electronic circuit board useless.......is the L4 shielded? or is my fear unfound? (I did`a search but to no avail) /ubbthreads/images/graemlins/help.gif

Cound the learned one in CPF pls enlight me /ubbthreads/images/graemlins/confused.gif

Thanks

Deleted member 684 · Jan 10, 2004

I, for 1, won't be too concern about EMP destroying our LEDs and all. In Singapore, you'll be hard pressed to find a source of EMP that can kill any electronics. If it can kill your LED, it can kill your handphone, and your digital watch. So..... my point is... eh.... continue carrying your incans. /ubbthreads/images/graemlins/grin.gif

Seriously, I really won't worry about EMP at all.

Double_A · Jan 10, 2004

Do another search for "EMP" There have been a very extensive threads here on this topic in both the Cafe section and on the ARC section.

Peter from ARC reported he placed one of his products in a microwave oven without damaging the light.

GregR

FlashlightOCD · Jan 10, 2004

I think if you experience an EMP large enough to knock out your LED driver circuits you will have greater worries than your flashlights. If it really concerns you, you could always go DD [Mr Bulk is master of Direct Drive].

Blackbeagle · Jan 10, 2004

Also a lot depends upon construction. Flashlights like the Arc, CMG Infinity and others with similar construction are almost Faradays shields in and of themselves. The circuit board is buried within the metal body that almost forms a complete encasement.

If you reach that level such that the pulse starts to reach into the small gap for the LED, I'd worry more about it burning out the LED itself, and if it was a surge of that level, I'd wonder if an incandescent filament would survive.