Is this legit? WildTrail WT90 SBT90.2 5500lm 2000m 3*21700 Flashlight And if so, what is their shipping like?
What is the purpose of the many tiny holes, sometimes in a pattern, sometimes seemingly randomly arranged, in driver boards?
slmjim
Vias, copper plated holes to connect the front and back copper layers, electrically and also thermically to help dissipate the heat from components.
Seconding this, and also, thefreeman designs drivers so he definitely knows what he’s talking about.
slmjim, if you look really closely at those holes usually you can see the metal lining the interior of them. It’s really amazing, brilliant idea, whoever came up with it. Very complex boards may have three or four layers and there are hidden traces between each layer, those vias letting the current flow where it’s wanted and the whole thing making for a much more compact physical design.
Thanks for the responses everyone!
slmjim
I’m looking for a rugged 18650 right angle headlight that has a couple of design features: mode switching by turning tailcap. No more switches that are unncessary places for water to enter. A charging port in the threads would be nice.
Also the dream would be a polycarbonate lens and gasket over the optic, much like a Rude Nora, with stainless M-_ hex pan head screws.
A right angle headlight with these features would be VERY durable and waterproof and reliable, and it’s a shame because so many lights have some but not all of these features.
Hello everyone, newbie here. I would like to ask how is it possible to make a thread in order to start a conversation for example about a subject or whatever.
Cheers
Go here:
https://budgetlightforum.com/forum
Click the subforum that you want.
Then click "New Topic"
Thank you so much!
Good deal…was wondering if you saw the replies or not. Hey…you could also check your guitar bits with this. None of that ungrounded electrocution stuff! 
The GT-FC40 (19.1mm2) LES is 2 times the area of the B35A’s (9.7mm2), so between the two I would go with the latter, even though you could crank up the power on the FC40 to compensate.
However I would rather go with the XHP50.3 HI, the LES appears to be around 8mm2 and it will take much more current than the B35A, Mouser has a 4500K 90CRI HI in stock.
Edit : I see the question was rather about hosts, sorry 
, no answer for that except that B35As produce a small eggyolk effect with SMO reflectors in my experience, it’s fine with OP, clear TIRs can also do that, and may require turning the height of the optic to eliminate it. (sometimes at the cost of a bit of throw)
I’m receiving some tomorrow and will do some color testing with a spectrophotometer.
@ CRC:
That overly lengthy post is TL;DR. Trim your responses down. If you have to, make multiple responses directed at each post and use …/ for shorthand (especially for Correllux’s response(s) – he tends to get carried away).
When ordering a 2-channel light from Emisar/Noctigon, Does it matter which emitter you choose for Channel 1 and Channel 2? Does one channel become the base or default channel? So if I want to ramp from warm to cold do I have to put the warm emitters in Channel 1?
Anduril high/turbo question.
I will be getting my first Anduril lights (DM11 & D4V2 UV mule) and after seeing the UI sheet and some videos I would like to use the simple UI (for now).
If a light is advertised as 5A or 7A or 9A is this the ‘turbo mode’ or the ‘high mode’?
If it is ‘turbo mode’ then what % of that is considered ‘high mode’?
if it is ‘high mode’ then what is turbo mode?
This is probably an easy question but I couldn’t find any answer in the videos I saw.
If there is a link that explains this and other basic Anduril driver questions, please offer link.
Thanks!
Remember that these aren’t rules anywhere, and just suggestions based on opinion.
Feel free to post as long or short as you want and as concise as you want to be, or not. Sidney might not read your longer posts but some of us have short attention spans.
Oh look! A butterfly
Huh? You endorse this repetitive posting?
I know there’s a few people that are really outspoken about it but it doesn’t really bother me either
Long posts should be no problem…evaluate whether it is information you need and then either read it or don’t.