Building Aluminum Boat Floor

The next project is an LED lamp with UPS, ie a lamp having UPS.
The circuit is very basic, is based on a source to power LEDs, a battery charger Gel and relay switch to double investor base.
As can be seen in the circuit, the relay coil is connected directly to the source that is fed from the power house, as soon as you connect the lamp to supply the relay will be activated, so you can say that there is energy in the house, because the relay is active, then go to feed the LEDs with controller 7812 and at the same time the battery starts to charge through the load resistor and diode.
When the lamp is disconnected from the mains or power failure, the relay is released by switching the battery from the charger to disconnect the LEDs and the LEDs 7812.
And when power is supplied again, the relay contacts are interlocked switching back and feeding the LEDs from the 7812 and charging the battery.