? Transparency is not a valid member of BoolValue "Workspace.Construction ?

I want all my lights to turn on and off if Switch = true Error I get Transparency is not a valid member of BoolValue "Workspace.Construction lights.Light Arrow.Switch"

game.ReplicatedStorage["Light Settings"]["Left Lights"].OnServerEvent:Connect(function()
	local Switch = script.Parent["Light Arrow"].Switch
		while true do
		wait(1)
		while Switch.Value == true do
				local ConLights = script.Parent["Light Arrow"]
				for _, ConLights in ipairs(ConLights:GetChildren()) do
			ConLights.Transparency = 0
			wait(1)
			ConLights.Transparency = 1
		
			end
			end
		end
end)

Updated script

game.ReplicatedStorage["Light Settings"]["Left Lights"].OnServerEvent:Connect(function()
	
	local Switch = script.Parent.Switch
	local ConLights = script.Parent["Light Arrow"]:WaitForChild(script.Parent["Light Arrow"].LPart, 12)
	while Switch.Value == true do
		task.wait()
		for _, ConLights in ipairs(script.Parent["Light Arrow"]:GetChildren()) do 
			ConLights.Transparency = 0
			wait(1)
			ConLights.Transparency = 1
		
			end
		end
end)

If you need a screenshot of what the explorer looks like let me know.