What is the significance of the light source in... - JSS1 Basic technology Electrical Projects - Flashlight Question

The light source, which is typically an LED or incandescent bulb, is the component that emits light when current flows through it. LEDs are favoured in modern flashlights due to their high energy efficiency and long lifespan compared to incandescent bulbs. The light source converts electrical energy into light energy, making it the primary functionary component of the flashlight. The efficiency and type of light source directly affect the brightness and energy consumption of the flashlight. A reliable light source ensures effective illumination, which is the primary purpose of the flashlight.