Bit hectic down at ground level, but I do sympathise with those higher up.... just a bit of a warning....we did have a problem, when the lights started flickering, we got our emergency torch/battery box out, which had not seen the light of day ! for some time, to find that batteries had been nicked for other things and not replaced, we were lucky the power stayed on, as we only managed to get a couple of small torches going with used batteries, guess what we are getting today.