Emergency Light Socket Components to build your own emergency light socket

All components (excluding 2 gang socket) are required to build your own Emergency Safety Socket.
The appliance operates similarly to the existing socket until it detects the power is removed when it automatically switches to battery operation and illuminates the bright light-emitting diodes.
The rechargeable battery enables the light-emitting diodes to stay on independently for up to three hours or until the electrical power returns.

PCB Board size is 27mm Long x 20mm Wide by 1.5mm thick.

Components supplied:

R1 Resistor 0.4w - 240VAC 270 ohm
R2 Resistor 0.4w - Current to base 1k ohm
D5, D2, D1, D3, D451N4004 - AC to DC and stops 3.7v to baseDO41-101N4007
Q S90121TRANSISTOR_PNP TO-92S9012
C 1 820nf1Capacitor 7mm Block Capacitor 7mm block820 nF
C2116-35v CapacitorThrough Hole Capacitor470 uF
F11FUSE 240vacPICOFUSE500mA
D61ZENER-DIODE F126Z104.7V
QC1 PCB for emergency light board
LED COB11/3w White COB Lamp DC 3V LED Panel Light 19mm x 19.5mm / 3v to 3.7v
5VDc Green LED
PCB Switch

Components NOT supplied:
The socket used for emergency lighting.
BAT3.71Rechargable BATTERY 3.7v - 2000mAhBATTERY-AA-PANEL
Solder for the components to the PCB board.
Wires.
Glue for LED COB strip and PCB board/battery fixing at the back of the socket.

Tools Required
Soldering iron.
Mains socket to install the kit into.
BAT3.71Rechargable BATTERY 3.7v - 2000mAhBATTERY-AA-PANEL
3 mm drill bit and drill for socket to install LED COB wires to socket back where PCB board is mounted.
I use a hot glue gun to fix the PCB board and battery.
Some basic knowledge of soldering and electronic circuits.