A2 LED questions

Having white LEDs in mine, and using blue ones in the store has me wondering about the various colors and their purposes, strong and weak points.

White: Best color rendition. Not as energy efficient, and possibly harder on the eyes at night.

Red: Won't spook game and tradional night vision preservation color. More energy effcient.

Blue: I have no clue, except maybe it looks cool? Should be less energy efficient as are white. Probably splitting hairs on the energy thing for most applications. Maybe blood trails in hunting?

Green: Might look brightest, since we see that wavelength best. Better on energy than white or blue, and combined with sensitivity to of the human eye could the most efficient. Touted in some places as better than red for night vision preservation.

Yellow-Green: Many similar attributes to green, except easier on the eyes than green? This seems to be the one the military uses most (well, also infrared) and it might parallel the trend to use yellow-green phosphor in night vision, which was supposed to reduce eye fatigue. Maybe it's just easier if using that color night vision to turn the same color soft light on in situations?

All this doesn't take into account personal preference, but I've wondered. I've never heard of a UV version (other than possible mods) but imagine it might be useful for finding scorpions and the like. Maybe leaks or forensics or something, but probably would not be bright enough for forensics.

I'm not trying to state any of this as fact, it's really more questions and wanting to know what others think/know.

The blue LED's would make an A2 very useful to military medical specialists if they were careful to lock out the incan. The blue light is not super bright so as to give away your position to the enemy, and blood contrasts very well as black. Blood cannot be seen well with a red LED light or the red filters used on most tactical lights.

I used a blue filter on a Surefire L1 (Low setting) attached to my helmet for this.

Also some users just prefer the blue to white for lowlight tasks such as reading etc.

That is a very good question, and one that I have wondered about myself.
Thank you for the explaination of the blue. But, I too am curious about the rest of the colors.

Hi, Torchman.

You'd probably might have noticed this, but I have a humble writeup Dummy Reference Guide to SF A2 modding with MJ leds of mine, which shown the process of how to switch the leds in A2.

The UV leds is a pretty good suggestion. Though I probably never have real good use for it, but I can see how it will be handy for those who needs it. As for the MJs, those are pretty useful to light up the room or a small area within 20 feet. And another 'fun' thing to do with this mod is to switch it into 'flashing' leds(for emergency or signal beacon?) or color changing ones for the fun factor during the festivities.

Anyway, I am sure the modded A2s can continue to 'grow' brighter as our led technology advances.

I finally did the search thing here the other night on this subject (search is working quite well now) and found this thread, about three weeks prior to my question. I probably read this thread first, and then forgot about it!

http://candlepowerforums.com/vb/showthread.php?t=92357&highlight=a2+led+colors

AuroraLite,

I did see the thread, and I even replied to you in a thread about it. I was thinking of you and others when I made the mod. comment.

Maybe down the line somewhere, I'd be doing that myself. My other concern would be warranty issue. Yes, my white LEDs are rather blueish, and those in your thread are snow white looking from the pics. I'd rather have the ones you installed!

Thank you to everyone that read or replied. I wonder if SureFire might answer the question. Then again maybe I should just dream of winning the Lotto (real one, no Lux)?!