No I have not yet.. Been wanting too, but hard to afford all new lights and this electric bill... My tank lights now runs at night so when it is in the heat of the day, my lights are not heating up the house at the same time. This has allowed me to be able to turn my air to around 76-78° with out it affecting the temp of the tank during day. I hope that helps. I'm just glad the skimmer is working again.