LED Assortment with Resistors (5mm)

This 5mm LED Assortment with Resistors is a practical starter and refill kit for anyone building electronic circuits in India. The pack contains standard 5mm round through-hole LEDs in popular colours such as red, green, yellow, blue and white, plus suitable current-limiting resistors for safe use in low-voltage circuits. Whether you are learning basic electronics, adding status indicators to an Arduino project, or assembling a small DIY display, this LED resistor kit saves time by keeping the most commonly used parts in one place. A 5mm LED is a polarised light emitting diode: current flows from the anode to the cathode and produces visible light. Because LEDs cannot be connected directly across most power supplies, a series resistor is required to limit current and prevent damage. The included resistors are typically used for quick experiments with 5V logic circuits, breadboards and development boards. For other supply voltages, users should calculate the resistor value based on LED forward voltage and desired current. The LEDs are standard 2-pin, radial, through-hole components suitable for soldering on perfboard, general-purpose PCB, training boards or direct breadboard use. The longer lead normally indicates the anode, while the shorter lead and flat edge on the body indicate the cathode. Different colours have different forward voltage ranges, so brightness may vary depending on resistor value and supply voltage. Use this assortment for Arduino and Raspberry Pi status lights, battery indicators, mini traffic light models, science fair projects, decorative panels, toy repairs, logic level testing, DIY electronics kits and classroom demonstrations. In the box you get a mixed selection of 5mm LEDs and current-limiting resistors; exact colour distribution may vary by batch, but the pack is intended to provide a useful spread of common indicator LED colours.