Thanks for the comments. :thumbup: Before doing the job we had meetings with the owners of Llechwedd to dicuss their requirements. It was decided due to financial constraints to overhaul the system that was already in place rather than replace the equipment with new LEDs. As this is a tourist attraction and has to compete with other venues for tourist trade, whilst not being in the same financial league as Wooky Hole Caves, we lit the caverns to high light the features for visitors, not as an underground Disney World or as a traditional mine tour. For those of you interested, Llechwedd may be doing a lot more for tourism in the future. :lol: :lol: :thumbup: