I have bought the headlight modu for the Wing, and will be installing it this week. I have one on the Suzuki bike, as well as a "Backoff" brake light modulator.
Last year, DMV (motor vehicle inspection) FAILED me for the brake light modulator, telling me they are illegal. I protested, but in the end, they would not pass me. I had the lane tied up for quite a while, while I asked for some sort of proof. They did no provide any, but would not pass the bike. I ended up bypassing it, to pass, but have yet to re-connect, as I rarely ride the bike, and want to sell it.
Not to de-rail, but since it's pertinent, anyone else here fail their state inspection for a BRAKE light modulator?