Can you tell me where can I buy electronic part "motherboard" for panic light?

I am building panic light, can you tell me where can electronic parts, i have LED 220x12v convertor. or:I am building panic light, can you tell me whe

I am building panic light, can you tell me where can electronic parts, i have LED 220x12v convertor.

or:I am building panic light, can you tell me where can electronic parts, i have LED 220x12v convertor.

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