Review on Remote Wall-Type Controller For Commercial Indoor Lighting: Adjustable Color Temperature 3000K/3500K/4000K/5000K And Brightness Dimmer Panel For Changing Colors by Mark Callaham

This LED panel has a very audible "buzzing" noise after being on few a few minutes. Buzzing often occurs with LEDs when dimming them, but even on the brightest setting this LED panel starts to buzz which can be quite distracting in a quiet environment.Aside from that, the multiple color settings and light levels are great. But that doesn't matter when you're being annoyed by a constant buzzing.Update: I replaced the panel and the loud buzzing noise went away. However, if you are really sensitive you can still hear a faint buzzing sound from about 5 feet away.It's also worth nothing that ASD's packaging is not fit for UPS/FedEx transit. What it's taken to get (4) working panels has been nothing short of absurd.1st shipment - one panel fine, other panel had buzzing2nd shipment - hole in the box and a dented panel, the other panel was fine so I used it to replace the buzzing panel from the 1st shipment.3rd shipment - hole in the box and a dented panel, the other panel was fine so I installed it4th shipment - never made it, lost in delivery5th shipment - pending to replace the dented panel in the 3rd shipment