Having needed some lights beneath the kitchen cupboards I purchased six of these 'spotlights'. Spotlight being the operative word, the light emmited from these fairly cumbersome 'lights' is minimal.
After not being particularly pleased with the design or the need for three batteries, I then peeled off the protective paper to stick them onto the underside of the kitchen cupboards, after first cleaning the cupboard surface and drying thoroughly.
After about a week or so I was lying in bed, one night, and heard a couple of thuds, on investigating I found the noise was made by two of the six lights coming unglued and hitting the glass kitchen surface.
No damage to the surface, but these lights just do not do what it says on the box.
Therefore, not a recommended product, at all.
The other four lights subsequently fell off as the glue is also useless they have all found their way into the bin!!
In my view a complete waste of money.