There were reports that the lights had taken on a slightly reddish glow late in the sinking. Bride even mentioned that there came a point where he and Phillips weren't sure that they were generating a spark any longer. That was just before they abandoned the wireless cabin. It seems that steam pressure had been getting less and less. It seems that they were not feeding the boilers after some point. But when the lights went out, it seems that was the result of lines breaking.