H has settled down to the old routine and visits the feeding area three or four times each night. The change of lighting seems to have made a difference for the XL2. It doesn't look any brighter to my eyes but the replacement LED lamps give a whiter light.
The four 12 volt lamps are about 45mm in diameter, waterproof and each contains 12 LEDs. Also I mounted them a bit lower down and I think they are now doing just the right job of illuminating Hedgehogs without disturbing them.