It was a group effort design. I gave them the base idea and they figured out how to make it work / turned it into a CAD design that could be used. My hand drawn sketches were not up to being manufactured to say the least lol.
Although my idea (and what they were supposed to do for the final light) included a PCB between the stacked cells to both help hold them in place and prevent cells from being inserted backwards.
Not necessarily a terrible thing for those of us that have tons of 18650’s laying around.
Only thing I wish could have been designed differently is the reflector. In the video on youtube of the prototype, posted by the gentleman in ausy that you sold it to, you can really see the points of the 4 individual cones around each led. Wish it was just a smooth circle of light instead.
You know, it might help for lumintop in the future to work with T/A a lot closer and have him informed. A lot of us trust on T/A’s experience and knowledge and will depend on that to sometimes buy products from these companies. Especially on something like this, since for the most part I believe that people from this forum will be the main buyers. I don’t know why they leave you (T/A) out of the changes. My .02 cents.
To play devils advocate: Lumintop is not in business to make the best flashlight ever, they are in the business of making money. There is a point at which changes and improvements cost them money instead of making them money, and they have to try and decide that point to bring the light to market.
(that said, I agree with the sentiment that TA’s advice should be followed whenever possible :+1: )
But it is not uncommon that if at a prototype stage they discover how good a flashlight is that is proposed, they turn enthousiastic. If that point is reached, there is more than just making money, they may go for a good product too. Chinese flashoholics are only human too
Btw TA,in thread title: passive looks better with double s