flashlight/edc thread

[ossumguywill]

Hey,
What flashlights does everyone here own? I have a fenix LD20, and I EDC a county comm maratac AAA. I'm not gonna post any of my cheap wal-mart lights with a bunch of 5mm leds or whatever, those hardly count in my mind. I figure if everyone here owns lasers, they might own a few flashlights.

Also feel free to post your EDC, I feel the two might be related.
On top of the maratac, I EDC my watch, phone, leatherman squirt, peanut lighter, DX mini universal remote, a single-handed folding knife, a small letter knife, my wallet, and some matches. Everything is kept either in the wallet or on a keychain besides the phone and larger knife.

will

 

[Tech_Junkie]

DealExtreme: $15.23 UltraFire WF-501B 3W UV 395~400nm LED Flashlight with Clip (1*18650/2*CR123A)

and a MXDL 3405.

 

[ossumguywill]

DealExtreme: $15.23 UltraFire WF-501B 3W UV 395~400nm LED Flashlight with Clip (1*18650/2*CR123A)

and a MXDL 3405.

UV flashlight? Can you actually light up anything non-fluorescent with it? It could sure be fun to have!

will

 

[Tech_Junkie]

Sure, its like a black light. You can still see everything, its just deep purple.

 

[Cyparagon]

I've got two P7-based lights from DX. one 1x18650 and one 2x18650 (significantly brighter). Also a 40-LED UV light that draws a total of ~5V*20mA*40=4W

Oh, and also a nice little cree 1W that takes one AA.

 

[FireMyLaser]

DealExtreme: $16.92 Ultrafire WF-502B 1W UV Flashlight with Clip (3.4V~8V Input)

Currently modified with a luxeon III white.

 

[ossumguywill]

My friend just gave me a Gerber rx350 with a burned out bulb... I can stick a 5mm LED in the bulb holes, but it gives me like half a lumen... is this what happens when an LED "burns out"? I didn't use a resistor or anything, and it kind of seems like some LEDs flash really bright when I first put them in then go dim. I'll try it with a 33 ohm resistor later on.

will

 

[FireMyLaser]

How many volts does it get?

 

[ossumguywill]

How many volts does it get?

3-from a CR123. I'm using a red LED, so I figure a Vf of 2V. This means 1v/.03A = 33.33Ω. I think I have these equations right.... I might go higher so I can use lithium rechargeables.

will

 

[FireMyLaser]

Yeah that is correct. You're lucky not having it blow up, because it smells really bad.

 

[ossumguywill]

Yeah that is correct. You're lucky not having it blow up, because it smells really bad.

hmm.... wtf. I might have to measure internal resistance of the light. Maybe it has a built in resistor... that might help explain the dim LEDs..... But do LEDs go dim if you overdrive them? If so, I've wasted like 5 LEDs. I also have a bunch of bright UV leds, but they like at least 5 volts.

will

EDIT:no internal resistance, IDKWTF is wrong. I'm gonna try and find an alternate head so I can install a (you guessed it) laser.

 

[roosl]

UV flashlight? Can you actually light up anything non-fluorescent with it? It could sure be fun to have!

will

UV (black light) is very useful identifying traces of rodents. Their urine and feces glow. People have used them for years in warehouses, etc. to check for evidence of mice and rats.

Here in the southwest, they're used to find scorpions hiding, which also glow under UV.

 

[FireMyLaser]

hmm.... wtf. I might have to measure internal resistance of the light. Maybe it has a built in resistor... that might help explain the dim LEDs..... But do LEDs go dim if you overdrive them? If so, I've wasted like 5 LEDs. I also have a bunch of bright UV leds, but they like at least 5 volts.

will

EDIT:no internal resistance, IDKWTF is wrong. I'm gonna try and find an alternate head so I can install a (you guessed it) laser.

They can get allot brighter, but only if you overdrive them to some point, then they will get dim and burn out within seconds. 1V overdrive is by FAR too much.

 

[ossumguywill]

They can get allot brighter, but only if you overdrive them to some point, then they will get dim and burn out within seconds. 1V overdrive is by FAR too much.

Alright.... then I might have damaged all those LEDs. But I just found a spare bulb in an old headlamp that will tide me over for now... so now I have 3 decent lights!


will

EDIT: post 7/9ths of the way to 1000!

 

[ZRTMWA]

God it took me forver to find out what edc meant (everyday carry, what you carry on you person, for the rest of you who are wondering).

I want one of those C bin P7's probably double 18650.

I usually EDC my phone and my wallet.

 

[ossumguywill]

God it took me forver to find out what edc meant (everyday carry, what you carry on you person, for the rest of you who are wondering).

I want one of those C bin P7's probably double 18650.

I usually EDC my phone and my wallet.

haha, Ive been having fun over at EDC forums and it's (I just realized that I use it's as a contraction of it has, not just it is. Mind=blow) inspired me to carry a bunch of crap in my pockets I've actually managed to use every single thing in the last week.

will