LEDs and light bulbs

Description

This light source set features a collection of 50 or more THT (through-hole) LEDs in 3 mm and 5 mm sizes, including colors such as red, green, blue, yellow, and white. Designed for compatibility with breadboards and educational microcontrollers like Arduino, these LEDs have a nominal forward voltage of 1.8 to 3.3 V and a current capacity of up to 20 mA. The kit also includes training-use light bulbs with E10, G4, or similar bases, supporting a nominal voltage range of 3–12 V with either LED or incandescent sources. These components can be powered using an external low-voltage source or batteries.