Real men keep a hank of manly colored paracord for just such emergencies... and/or a few black bands cut from a bicycle innertube. But, when dire emergencies arise, "burple" scrunchies? Man? Where's my Sharpie? LOL
Yay !!! Cookies !! Didja have to pay rent for the scrunchee with extra cookies?
Yes, they are bright. I added a 4.5x lens to see what difference it makes. The 4.5x lens cuts the focused beam size to 1/4 the normal size and 4x brighter (same amount of light just condensed), but the lens is big. I want to built a 10x monocular with one attached for my pvs14 long range ID. I will try and get some pics thru a sightmark photon 3.5x with and without the lens. The 4.5x lens should make a great match with the digital NV the beam is really tight and can be de-focused to a larger size beam that will match the view from the digital. Digitals should be good for 350yds with the 4.5x lens added. Will start a thread when I get some pics and video.
I built some since you posted, got in three T20's, had to re-use the pills because they are out of stock right now, they work well, will give them a test next time out. Haven't tried the lens, may try that next.