I Have several drivers that I replaced with NANJNG Driver.
Anyone know if any of this is Direct drive on high just by looking on the circuits?
Thanks
The upper three probably are. At least they pump current in respect of Vf of the led used. I think i have all of those in my junk drivers bin. :)
They are also pretty junk and i know why you swapped them. Those already look direct drive with a IC of some sort to add modes and pwm.
The lower three are probably higher voltage drivers (like 3-8,4V). The Bucking coil is present, however they might also be boost drivers. The first one (lower row) looks somehow familiar.
For sure they lack any form of decent regulation.