I bought 2 of these, to use as a crosshair, primarily for my 2.8w laser; but they won’t be here for ~2 months…
Do these have a built-in driver/current limiter; or do I need to get those aswell? I am assuming that because they cost ~20 times what a regular 5mW diode costs, they would have a driver in them; but I am seeing a lot of different opinions on different pages… some people use external drivers, some don’t…
Also, a 5mW laser should not produce enough heat to warrant a heatsink, would it?
V/r,
Mike