Top critical review
Short Life !
1 September 2019
Probably lowest offer on Amazon, these are novelty items.
Useful as door open warning, they have a very short life.
The button cells last about a month, and the circuit lasts about two battery changes before the delicate solder comes off ! To keep them working, you have to arm yourself with some spare gadgets, and scores of button cells !
These are neatly packed in tiny plastic boxes, so when the lights give up, there is some consolation that you have two miniature boxes for storing T10/T05 bulbs, or blade fuses -- for 599/- !!