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Without IC | How to make simple oscillator/flashing/blinking lights using DC relay | POWER-GEN - YouTube
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How to build a simple blinking led circuit with a capacitor, transistor and two resistors | Jon Gallant
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Amazon.com: EDGELEC 100pcs 5mm White Blinking LED Diodes 1.5Hz Flash (Single Color Flashing) Clear Round Lens 29mm Lead DC 3V Blink Bulb Lamp Light Emitting Diode +100pcs Resistors (430ohm for DC 6-12V)
![10pcs 3mm 5mm Flash Blink Led Diod 12v 20cm Pre-wired White Red Green Blue Yellow Uv Rgb Lamp Light Emitting Diodes Pre-soldered - Diodes - AliExpress 10pcs 3mm 5mm Flash Blink Led Diod 12v 20cm Pre-wired White Red Green Blue Yellow Uv Rgb Lamp Light Emitting Diodes Pre-soldered - Diodes - AliExpress](https://ae01.alicdn.com/kf/S5880a014692e48b4a79595d818862b264/10PCS-3mm-5mm-Flash-Blink-LED-Diod-12V-20cm-Pre-wired-White-Red-Green-Blue-Yellow.jpg)