Sabtu, 06 April 2013


Automatic switch-on when it gets dark, 6V or 3V battery operationThis design was primarily intended to allow automatic switch-on of push-bike lights when it gets dark. Obviously, it can be used for any other purpose involving one or more lamps to be switched on and off depending of light intensity. Power can be supplied by any type of battery suitable to be fitted in your bike and having a

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