30 Pcs 5Mm Pre Wired LED Light Emitting Diodes, 9-12V 20Ma Pure White

What is this?This is a set of pre-wired LEDs suitable for use as indicator lights or decorative lights in electronic projects. It comes with pre-soldered wires for easy soldering and the clear bulb emits a bright light making it good for DIY electronics circuit board signaling equipment status indication small decorative lighting and electronic experimental setups.What will I get?Colloid color: ClearLuminous Color: Pure WhiteLamp diameter: 5mm/0.2inchLamp height: 8.7mm/0.34inchLead length: 20±2cm/0.8±0.01inchForward voltage: 9-12VMax current: 20mAWelding resistance: 560 ;Round top 2 lead wires Polarity: anode (red lead)/cathode (black lead).Packing List: 30 Pcs x Pre-Wired LED LightsAre there any advantages of the product?Pre-wired LED beads are energy-efficient providing excellent brightness while reducing power consumption thus helping to lower energy costs and extend the life of battery-powered devices. The pre-wired design eliminates the need for additional soldering saving electronic assembly time. Clear red/black wire polarity markings prevent incorrect connections. Multiple colors allow for various signal indications making them more visible and practical in different scenarios.How to use it?Determine the polarity: Connect the red wire (anode) to the positive terminal (9-12V) of the power supply and the black wire (cathode) to the negative terminal (-).What should I notice?Always observe correct polarity and use current-limiting resistor; not suitable for wet environments.