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Shared February 22, 2026
Never blow another LED! 💡 This DIY All-in-One LED Tester is a game-changer for your workbench. From tiny SMD chips to big backlight strips, this tool handles it all! 🛠️
Why you need this:
Instant Voltage Readout: See exactly what voltage your LED needs.
Safe Testing: Constant current design prevents burning out components.
Portable: Powered by a single 18650 battery for cordless use.
Universal: Tests SMDs, COBs, and standard 5mm LEDs effortlessly.
Parts used in this build:
XL6009 Boost Converter Module
18650 Li-ion Battery + Holder
Digital Voltmeter (0-100V)
1kΩ Resistor (Current Limiter)
Multimeter Probes
Want the full circuit diagram? Let me know in the comments! 👇
#Shorts #Electronics #DIY #LEDTester #TechHacks #LifeHacks #Engineering #Inventing #18650 #ToolTips #ViralShorts2026
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