Multiple Objects Won't Light Up At The Same Time?

Hi folks, I'm a bit of a beginner in scripting and still trying to gather techniques to make my codes efficient. Please have a look at my script and hopefully one of you awesome helpers can tell me what I'm doing wrong, thank you!

Debounce = false
function OnClicked()
	if Debounce == true then return end
	Debounce = true
	for i,v in pairs (script.Parent.Parent:GetChildren())do
		if v.Name == "LED" then
	v.BrickColor = BrickColor.new("Crimson")
	wait(2)
	v.BrickColor = BrickColor.new("Deep orange")
	wait(2)
	v.BrickColor = BrickColor.new("Parsley green")
	wait(4)
	v.BrickColor = BrickColor.new("Crimson")
	end
end
end
script.Parent.ClickDetector.MouseClick:Connect(OnClicked)

Basically, I have 3 sets of L.E.D's I want to light up when a button is clicked, but for some reason it does work in the colour order although only 1 set of L.E.D's light up if that makes sense. Thank you all again for your time and hope to hear soon!

creeperhunter76's answer works, but spawning a new thread each iteration is gratuitous. You should create new threads(and use coroutines) sparingly.

I would make a function for changing the color, and simply call it multiple times.

Also, idk if this was intentional but you never turned your Debounce off.

local Debounce = false

function color(c) --Function to color them
	for i,v in pairs (script.Parent.Parent:GetChildren()) do
		if v.Name == "LED" then
			v.BrickColor = BrickColor.new(c)
		end
	end
end

function OnClicked()
	--The variable will already return true or false
	--Comparing is redundant.
	if Debounce then return end
	Debounce = true
	color("Crimson") --Call it multiple times, with waits in between.
	wait(2)
	color("Deep orange")
	wait(2)
	color("Parsley green")
	wait(4)
	color("Crimson")
	Debounce = false; --Turn debounce off
end

script.Parent.ClickDetector.MouseClick:Connect(OnClicked)