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Circuit Planning: Create a Dual Flashing LED Circuit on Protoboard With 555 Timer : 7 Steps (with Pictures) - Instructables
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WERMA light element, 50mm diameter, clear lens, LED, blinking (1Hz ON for 550ms) light function, IP54, 24 VAC/VDC.
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Amazon.com: 3mm Round Top Red Slow Flashing 1Hz LED - Super Bright (Pack of 50) : Industrial & Scientific
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Amazon.com: 3mm Round Top Red Slow Flashing 1Hz LED - Super Bright (Pack of 50) : Industrial & Scientific
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