... LED influence problem;7. High efficiency constant current drive system, with heat protection system, can work under unstable voltage;8. ... , no humming, no RF interferenceMain Applications of this dimmable led panel light:1. Hotel, shopping mall, office lighting2. Hospitals lighting3. ... ;d) Shipping method: Courier(like DHL, UPS,FEDEX, etc), Air, Ocean, etc, and you can also use your own forwarder ...