220 Volt AC to Run 4v RGB LED Using 7W LED Board Without Transformer

220 Volt AC to Run 4v RGB LED Using 7W LED Board Without Transformer
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Components 1

#1# rgb led ×25
#2# 7w scrap led ×1
Components 2

#1# 470e resistor ×1
#2# bc547 transistor ×1
#3# push button ×1
#4# 1000uf 16v capacitor ×1
#5# 5v relay ×1

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Видео 220 Volt AC to Run 4v RGB LED Using 7W LED Board Without Transformer канала Tech Arrange