Hi, Maybe not directly laser orientated, but -I have a few high quality mains voltage medical grade toroidal isolating transformers. Most are 240 - 240V, one is 110-110V 3Amp made by Avel Lindberg UK. Dimensions - Dia 140mm, Height 70mm. I don't want anything for them, just a good home - but they do weigh approx 5Kg each! If you are interested and willing to pay postage costs (UK about £9.00) - let me know. I can supply pics if needed. Regards, David.