In no way I’m I questioning him, his prices or his business model. I know how much time it takes to mod lights, and if you are doing it as a business you have to get paid for that time or it’s not a successful business. My interest is purely about Vinh mods vs BLF mods.
I know. If I wrote those words to clarify a bit about Vinh, the person, it sure wasn’t your post that triggered it.
Puts more time into it to perfect it, he’s not doing some secret mods we don’t know about, he’s just cherry picking LED’s for max output and hes got mad centering / focus skills.
I’d say he’s a bit better than your average modder but again what makes his stuff special is the time / detail he puts into it, he’s not got a magic wand he’s doing stuff with a soldering iron and screw drivers same as the rest of us.
Not talking trash, he’s a great builder & modder for sure, his attention to detail is unmatched by 99% of flashlight modder but he’s only doing the same stuff the rest of us are using the same tools and supplies and parts its just that he’s perfected the techniques [cause his business depends on it].
He’s 10’ tall and can take on 15 men—— No No he’s 12’ tall and can take on 20 men——- Sir Vinhiam 
Just an alright guy making a living with something he likes
Every forum, not only flashlight related have their guru draining fat wallet worshippers. No mystery.
Mike
As usual spoken by the Empty Wallet bellyachers
I think he’s a good and pretty honest guy. I did try several his lights. My first was his modded Manker MK 34 with a different finish. It was $320, whereas the unmodded light sells for $149. So I would say that’s expensive. My problem with it was twofold. First and most importantly to me, the glowing of the button no longer worked with his mod. This is one of my favorite features of any flashlight that offers it. I just love to see flashlights breathing on my desk. My biggest complaint was that his website and he never mentioned that he would disable that feature. That was a big deal to me. Secondly, the new finish on the light did not seem very even or smooth, and I found it much less appealing than the factory finish. To his credit he graciously excepted the return so that was good. But I do feel his website should give a lot more information then it does.
I did have a third problem with the light. It was supposed to be much brighter but I could see no difference. That convinced me to stick with factory lights or custom lights from Custom makers like I did have a third problem with the light. It was supposed to be much brighter but I could see no difference. That convinced me to stick with factory lights or custom lights from Custom makers like Livingston and McGizmo.
I’ve noticed when people sell these vn lights second hand they struggle to get the high prices they ask for , they depreciate very quickly.
I think his stuff is expensive , just look at Hank wang with the new D1s with the flat white led which is similar to what vn is doing at a fraction of the cost.
I’ve grown more and more interested with is lights over the years. I’ll keep it short and simple because people here have already sum’d it up:
- the extent of his mods are too often nothing greater than what a lot of blf members can do, but he’s made a business out of it
- his worth ethic and customer service are top notch
- he is honest
Ive eyeballed a few lights on his site and ended up snagging a Toolvn, still waiting on the AA version to release. I have no complaints, he made it EXACTLY how I asked through email. Its solid, well centered, perfect tint, and even has added thermal mass.
Ive been emailing back and forth with Vinh asking questions about everything from potential mods to questions about his drivers and he has been a pleasure to work with and even though ive only bought one light, he still responds kindly.
IDK, he seems like a good dude, especially with the charity work he does. Ill happily support a small business like that.
That’s because Hank will be able to mass produce them off factory lines while Vinh has to hand mod each one.
Vinh hasn’t been able to implement the white flat properly yet in his single led direct driver throwers, so he’s sticking to multi emitter ones for now.
Vinh is a small-time (as in not a big or even mid-size corp) maker and modder that sells his mods to people that’ll buy them. I’ve had my talks with the dude here and there on his Youtube channel (Sky Lumen), and he was civil and helpful when I had questions about this or that.
That said, I’m just not a lumen fanatic, and his focus on extreme outputs doesn’t tickle my fancy; on the contrary, I don’t much care for the reduced runtimes that the increased power entails.
(he launched a Sky Lumen V2 pocket rocket a while back, but outside of the extreme power potential [2000 lumens off an 18650 tube light was HUGE back in 2015], it’s no different from what you’d expect from Dale or TK)
He’s just an experienced modder who does a bunch of lights at a time and then sells them.
Really good at consistency and keeping a factory-like finish.
When you mod something many times you get pretty good at it 
“Practice makes perfect” is a popular saying for a reason 
Great job for him at making a business out of modding flashlights. For anyone that can mod a light to be a freaky beast, that’s talent in my book.
Link to his website?
From what I have seen, he is simply an experienced modder who had made a good business out of a hobby.
I personally am not particularly impressed by his mods, but I am an electronics engineer, so I can see his point of view.
I in no way intend to insult him. He seems honest and competent, and I’d want a fair amount of money for some of the mods I’ve done and how long they take to get just right.
Just search SkyLumen.
Not sure if we are allow to provide direct link to his website.
Vinh is the only full-time modder I know of that does this hobby for a living. The guy has amassed a huge amount of experience and knowledge from the thousands of lights he’s modded so that alone is probably unmatched by 99.9% of the modders here. It seems his main focus is on making killer high output and mega throwers but recently some of us have been trying to get him to look at warmer HI CRI lights too. He is currently manufacturing his first 100% Skylumen made-in-USA light called the Genesis.
Im not going to bash the guy as I have never dealt with him or talk to him. But the one thing I have never really liked about the circumstances is I don’t think he has ever shared his mods.
I have had a Sunwayman V10R ti for several years and have never been able to find much info on how to increase the current for more lumens.
I read several times that “I just got my V10R back from Vinh and it does 2.8 amps”. 
Me as a modder “I want mine like that”, Well how did he mod it? No one knows, so it was a Vinh secret.
After several years of using this light and then the recent Amazon deal on the V11R.
I gave this current mod alot of thought and free time.
After a few weeks of testing buying parts and reasearch, I think I cracked the V11R,V10R current safe.
I was finally able to increase the current in my V10R.
I didn’t keep it a secret I shared it here on BLF.
That’s what BLF has always been about “Sharing”.
Imagine what light and what kind of modes you would be carrying right now, If it wasn’t for people like Toykeeper, Tom E, Tido, TA, Lexel, Comfychair, Dr.jones, JonnyC, Old lumens, and alot of others, the list just goes on and on.
.
Nothing wrong with offering modding services for some cash (some people would never have a modded light without this service) but here on BLF it’s all about sharing knowledge with the Community.
Just my 1 cent .