LED Emergency Light Circuit Electronic
Components List:
R1 = 180R – 1/2W
R2 = 1.2K
R3 – R14 = 100R – 1/2W
R15 = 1K – 1/2W
R16 = 16R/5W
VR1 = 2.2K
C1 = 1000uF/25V
D1-D5 = 1N4007
D6 = 6.8V – 0.5W Zener
LED1 – LED12 = Ultrabright White LEDs
T1 = BC548
T2 = BD140
B1 = 6V – 4.5Ah Rechargable Battery
IC1 = LM317
T1 = 9VAC-Transformer
You can construct the circuit on a general-purpose PCB and mount the circuit in a plastic with enough space for battery and switches. Mount the LEDs on the cabinet such that they light up the room. A hole in the cabinet should be drilled to connect 230V AC input for the primary of the transformer.