That's a cracking idea Tengu thanks! It had never occurred to me to replace the wick, although at the end of the day; most tealights are just discs of wax with a poor quality wick poked through a drilled hole!
Nice one!
Nice one!

i have one of these and the candle bit is good, but the oil bit is absolute carp. really carp.
the candle is good and gives out a decent amount of light