Out in the cold (ca.0 ~ 5C °) I've done a couple of times after dinner with the part in hand walk. But since he had suddenly bad mood and no longer working properly or not at all more, although new batteries are in there. Go home and get a bit until the part is hot again, then the lamp is a lamp again.
So it is a good work for people who stay in the winter at home. Unfortunately, I have the part not intended therefore deducted three asterisks.
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Addendum:
After about 9 months spontaneous use this lamp started often by themselves in the on-and-off state elaborate until she had given up her mind final.
