A light emitting device is produced using a plurality of light emitting diodes within a light mixing cavity formed by surrounding sidewalls. This bead can be made in regular, bullnose, or flex trim type arrangements. Changing the duty cycle may change the amount of current to the actuator. The blocking tab being in abutting engagement with the abutment area in a lock-actuated configuration of the lock arrangement, the blocking tab being received in the detent in a locked configuration of the lock arrangement and the blocking tab being withdrawn from the detent in an unlocked configuration of the lock arrangement.