Emergency Lamps is one of those circuits which are fairly commercialized and are also popular in the DIY section. Keeping aside the feature of finished product and simple use, DIY circuits provide flexibility measures to circuit designing.
Here is a High efficiency Emergency Lamp using High bright White LEDs. It automatically turns on when power fails and turns off when power resumes. It is powered by a 6 volt 4.5 Ah rechargeable battery which can power the LEDs for a long period.
Filed Under: Electronic Projects