XZTHI55W-3 - 880nm IR <-- not using this one in the firmwareXZTNI55W-3 - 940nm IRXZM2CRK55W-3 - 660nm RedThey're super bright, some of the brightest I could find for the sub-millisecond flash rates. IR is invisible though you can still lightly feel some radiance from the LEDs. If I could find a Far Red LED at the right size I'd switch the Red for that more or less due to slightly better penetration, which would be around 740nm.The light sensor is the BPW 34 S-ZAgain, best I could find, not many options really, they're basically mini solar panels - like they can even power some really low current circuits.
XZTHI55W-3 - 880nm IR <-- not using this one in the firmware XZTNI55W-3 - 940nm IR XZM2CRK55W-3 - 660nm Red They're super bright, some of the brightest I could find for the sub-millisecond flash rates. IR is invisible though you can still lightly feel some radiance from the LEDs. If I could find a Far Red LED at the right size I'd switch the Red for that more or less due to slightly better penetration, which would be around 740nm. The light sensor is the BPW 34 S-Z Again, best I could find, not many options really, they're basically mini solar panels - like they can even power some really low current circuits.