Transformerless Power supply | AC to DC Power supply | How to make 12 volt dc power supply

C1 = 0.22uF,400V
R1 = 1M ohm, 1/4 watt
Diodes = 1N4007(D1,D2,D3,D4)
C2 =220 uF,25V
R2=330 ohm,1/4 watt
R3=680 ohm,1watt

List of Parts: 
light-emitting diodes (http://amzn.to/2oKv9eS)
Resisters
Capacitors
soldering iron(http://amzn.to/2oxTJNS)
multimeter(http://amzn.to/2oBLSRb)
screwdriver(http://amzn.to/2p4XDkn)
solder(http://amzn.to/2oy1kMn)
hot glue.(http://amzn.to/2oy4GPL,http://amzn.to...)
Try and assemble by yourself this very promising and cost-effective light source.

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