djozz
June 8, 2018, 10:02am
7
I did a few tests on drivers from led4power in the past:
(this will be a limited post for now because I am going away until next wednesday, I will update this post with graphs and such when I have time again)
I received led4powers driver in the mail last week and today I had some time for testing. In a PM led4power asked me to change a cap for a different value because preliminary results from HKJ showed oscillations of some kind at certain circumstances. No idea what it was exactly (I know Ohm's law quite well, and not much more than that), but I wa…
[image]
Introduction
A month ago I received two prototypes of a new flashlight driver from led4power, named LD-2, with the request for testing them, especially the parasitic resistance. I was of course very honoured that I was to test his brand new driver (who am I to know it all about drivers? I don't), but I felt also a bit uncomfortable because testing them well involves the time and dedication more suited for someone retired with a lot of time on his/her hands than me: busy with work, fami…
[image]
First I have to apologise to led4power for posting this so late, he has send two of his new drivers to me for review already a month ago, which I really appreciate because I do not see myself as a connaisseur of custom drivers and do not have the electronical knowledge and equipment to do quality testing like HKJ does. I received them a full month ago and it took until now to write a post about it. Reason is that I did have numerous little time-slots to chat in the forum but the past mo…
I like to see a driver tested every now and then to see what its role is in a flashlight, as well as a reflector, a lens, a switch etc. , but I would find it boring to check all that in each and every flashlight, I agree that a total performance of a flashlight is more interesting than just what the driver does.