Lampshade diameter is 290 mm, providing broad warming coverage for most dishes and reducing concerns about a small shade size. elastic spiral wire can stretch about 10 million times, delivering a longer service life compared with inferior wires. Telescopic adjustment knob with a scroll knob design allows the stretching length to be adjusted , with a range of 60 to 180 cm. Gear type shift switch offers safe, convenient operation and a modern appearance. Suitable for keeping foods warm in various settings due to its size and design, supporting easy coverage of standard dishes. Use scenarios: Home kitchen or family dining: keep multiple dishes warm on a serving area during meals without frequent reconfiguration. Small cafe, restaurant, or buffet: maintain hot dishes at serving stations for extended service periods. Catering events or hotel breakfast bars: quickly reposition and extend the lamp to reach different trays and stations as needed.