Rings of Power talk!

[Inziladun]

Originally Posted by Radtech51

You might be right about the Three immediately becoming powerless after the one ring was destroyed, however if they were then how did Galadriel create that last parting flash of light from her ring in display to Frodo? It's true she was a powerful sorceress of sorts so I suppose creating a flash of light would not prove to difficult for her, but still it makes you wonder.

At the time of the parting of the hobbits and Gandalf from Galadriel et al, the group had been camped on a "low hill" within sight of the Mountains of Moria, so there was high ground in the area.

Quickly fading into the stones and the shadows the grey-cloaked people of Lórien rode towards the mountains; and those who were going to Rivendell sat on the hill and watched, until there came out of the gathering mist a flash; and then they saw no more. Frodo knew that Galadriel had held aloft her ring in token of farewell.

The description of the lighting as producing "shadows", added to the "gathering mist", makes it possible in my mind that it was sunset. Maybe Galadriel simply held up Nenya, upon which a last glint of sunlight lit.