If you permit me an unsolicited suggestion, I've had success using a black permanent marker to dim overly bright LEDs to an acceptable level. For really bright

If you permit me an unsolicited suggestion, I've had success using a black permanent marker to dim overly bright LEDs to an acceptable level. For really bright ones, which are causing trouble when the area is otherwise dark, I've also had success covering them with black insulation tape. It leaves them bright enough to be clear but not so bright as to cause annoyance.