First an foremost, I want to express my sincere appreciation to the Hubitat team and the developers on this forum that have been putting in very long hours and huge amounts of effort to support the betterment of this product and its growing user base.
For the record, I’m not complaining about the fade speed parameter, nor do I have a misunderstanding about the answer I was given. I’m fine with it. The Sengled Element Plus are unique in the industry because they are zigbee bulbs that can be dimmed with a conventional dimmer. They’re different and so react different. I’m good with that answer.
I’m not in favor of removing the fade speed parameter. It’s a very nice feature and I want to be able to use it with anything that will support it. However, it would be nice for those just learning Hubitat to have the fields labelled (Top=“Brightness Level”, Bottom=“Fade Time in Sec”) 
Just so there’s no confusion of what I reported originally vs the more complete testing that @veeceeoh did with different Sengled bulbs, let me reiterate…
With Sengled Element Plus bulbs, brightness level works down to 1% and fade time works with brightness settings of 1% and higher. However, these particular bulbs do not do anything if the brightness is set to 0, regardless of what the fade time is set to. It’s not that they turn off fast, they simply don’t turn off when a brightness of 0 is entered, unlike other zigbee bulbs in Hubitat. But they’re unique, and I get that. It’s fine if they don’t behave the way other bulbs do. Please don’t remove the fade feature because of one bulb type that behaves differently from any zigbee bulb, because it is different from any other zigbee bulb.
