I am an author designer and teacher of needle painting embroidery and have used the slimline magnifying lamp from Daylight with the glass lens for many years - it was fantastic. Decided to upgrade to the XR lamp and was surprised to notice that there was a visible dip in my fabric when viewed through the lens. I tried looking at various other things such as books and pictures and the dip was still there. Daylight company kindly sent a replacement lens, believing it to be faulty but the dip was still there! It is virtually impossible to stitch with this light as one feels as though one is stitching in waves over the dip so I cannot recommend it for embroidery or similar tasks. Such a pity, I do hope that Daylight will look into this problem as the lamp has great potential. Meantime I would recommend ordering either the 5" or 7" glass lens magnifying lamp by Daylight or the 3 in 1 by Purelite. Trish Burr.