How do I stop this While True Do loop?

There are the proper variables in place btw

Anyways, this script is supposed to make a block strobe and stuff, but I can't get it to stop. I try to break the loop but it does nothing and keep strobing. What am I missing here?

function strobe()
	s:Play()
	local parts = a:GetChildren()
	for i,v in pairs(parts) do
    	if v.name == "Strobe" then
    		spawn(function(f)
            	while true do --Setting up a loop to cycle through 
                    v.Material = "Neon"
                    v.PointLight.Brightness = v.PointLight.Brightness == 0 and 5 or 0;
                    wait(0.03)
						if t.Screen.SurfaceGui.MainFrame.GrayThing.ImageLabel.ImageButtonOff.MouseButton1Down == true then
							break
						end
					end
					
			end)
       end   
   end
end

t.Screen.SurfaceGui.MainFrame.GrayThing.ImageLabel.ImageButtonOn.MouseButton1Down:Connect(function()
	strobe()
end)

c.MouseClick:Connect(function(clicker) --Linking a function to the click of the handle
	strobe()
end)

Thanks!