If it doesn’t say anywhere, or didn’t say in their ad, which way as far
as positive towards the light or towards the end cap.
I’ve had lights that you put the negative toward the front and also positive toward the front AND negative on the little spring, which is usually at the front and positive on the spring.
So how do you KNOW the direction?
I’ve never had a light that positive went towards the tail, but I know they exist. I ASSUME positive towards the head unless labelled otherwise
Well, if it doesn’t say anywhere then you can’t Know can you?
You must guess. Most lights are positive toward the front so I would expect (hope) that lights which use positive > tail would be mention it. Educated guess, if it doesn’t say it’s positive > front.
And if it’s positive > tail but not labeled as such then it Must include reverse polarity protection or else there will be a lot of broken flashlights.
Ive owned over 300 flashlights and not one has had negative on the head end of the light… lasers on the other hand….
Some lights work either way… But I’ve never had one that had to have the positive pointing toward the tail.
Thanks all.
Holy cheesecake palomino, JMPaul, THAT must be where I got confused.
Got my 1st laser and sure enough, neg. toward the front. So are ALL lasers that way?
Not all lasers but quite a few.
I thought it was a well established standard for all flashlight manufacturers to put the positive towards head of flashlight with just a very few rare oddballs who didn’t get the memo…
Really? I’m almost positive my niwalker mm15 has the positive towards the tailcap.
Didn’t you have a mm15vn Justin?
yeah youre right - i guess i never thought of that one
Just got my 2nd laser in Halo.
So now, one is pos front, the other is neg front. Go figure.
I have a Wolf-Eyes Explorer, and the 2Xcr123 batteries go in with the + end at the tail switch.
It’s an incandescent, built like a tank, even comes with it’’s own serial number. High quality light,
but I still feel a little uneasy when I put those batteries in “backwards.” Polarity is not marked, but it’s polarity-protected. Nowhere near as bright as today’s LED performers, but I use it occasionally just because I like it.
My Spark ST-6 headlamp can take the batteries either way 
Yep, that’s the one I was thinking of!
EOslamp sp11s
tiny stainless AAA takes a backwards battery ...and shuts off when twisted tight...comes on when loosened ......So you end up twisting to turn it in the opposite direction you're used to . twisted tight is not a horrible idea .. nice light.
99.5% of all lights are pos.+ forward
Innova x1
Based on my intuition.
The light works.
Inova X5 too.
Tank007 TK-703. This light is a good example of which way in?
I received one DOA (which I returned), but to this day I am fuzzy as to the correct battery placement.