I've found for a red laser powered by around 4-5v, the ideal resistance range is about 5 to 20 ohms, with the larger ohm value producing the minimum mA power and the smaller value setting the maximum mA power. So a good combination would be a 10 ohm multiturn with a 5-10 ohm resistor in series.
Also, mega kudos to rog8811 for all his classy art work![Wink ;) ;)](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f609.png)
Also, mega kudos to rog8811 for all his classy art work
![Wink ;) ;)](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f609.png)