Fun 4v Led Emergency Light Circuit

The first one is battery charging circuit which acts as an indicator circuit when the power supply is turned off.

4v led emergency light circuit. The automatic emergency led light circuit can be designed in two parts. Output with 2 4v 5w lamp or 3v led and a 3v battery. We have developed three circuits under automatic led emergency light.

But the use of leds has proven to provide adequate lighting for a longer period before draining the battery. In this emergency light circuit when the power goes off the emergency light activates automatically. Parts list for automatic emergency led light circuit diagram transistor 2n2222 1pc.

Two of them are. Its superb characteristic is that it contains a built in battery charger. We have used four bright white leds more leds can be added to produce more light considering that total current consumption should not exceed the supply current.

The led emergency light circuit without a transformer. Earlier fluorescent lights were used to build such circuits. The following circuit shows how a low voltage cut off circuit can be included.

It is a set of emergency lighting for multipurpose application lighting for emergency exit and walkway at night etc. Ultra bright white led consumes 3v and 20ma current. R1 220 ohms 1 2 watt r2 100ohms 2 watts rl all 22 ohms 1 4 watt c1 100uf 25v d1 2 3 4 6 7 8 1n5408 d5 1n4007 t1 ad149 tip127 tip2955 tip32 or similar transformer 0 6v 500ma.

This circuit automatically turns on the leds when there is no ac. This video provides you the brief idea of working of automatic emergency led if the main source goes off then emergency light glows and alerts. The second circuit is an emergency light circuit that turns on the leds according to the light condition.