I miss the days of the simple drive, quite a few laser/led drivers from China have a low bandwidth that poses problems in a laser projector, the simple drive was 100khz some of these Chinese ones tend to be about 30khz and are not as reliable, I have one that surges at power up, and killed an expensive diode, even with a LASORB stuck to it so test these with LEDs cheapies as a load
Remember Remember The 8th of November, When No One Stood, but Kneel, In Surrender
In a popular government when the laws have ceased to be executed, as this can come only from the corruption of the republic, the state is already lost. Montesquieu