E27 compatibility: The lamp holder uses a standard E27 socket that accepts LED, CFL and incandescent bulbs, providing flexibility in brightness, efficiency, and color options without changing fixtures. Pull chain control: The integrated pull chain switch offers simple on/off operation from the ceiling position, making it practical for fixtures mounted or in hard to reach locations. Stable and reliable performance: Designed for secure bulb connection and dependable operation, reducing wobble and ensuring long term reliability. Versatile compatibility: Designed to accommodate various bulb types and lighting needs, enabling flexible use across different rooms and setups. Residential and commercial use: Suitable for both homes and commercial spaces, offering a versatile lighting option for living rooms, offices, hallways, and more. Practical use scenarios: Living room ceiling light with an LED bulb for energy efficient ambient lighting. Kitchen or hallway fixture where easy pull chain control is convenient. Small office or retail display needing flexible bulb choices and straightforward operation.