Most state bicycle laws read very much the same.
When the standard law was written that most states picked up on, there were NO nice little red blinky bicycle lights that you could go out and buy. Therefore the reflector. The white headlight selection was limited, but they were available, and most only provided enough light to be seen.
By the way, one or two of your rear lights should be on steady mode. Blinky lights make it much harder for a motorist to judge the distance they are from you.