Features: Socket adapter set ensures secure compatibility with LED and compact fluorescent bulbs, supporting up to 220V for stable performances in ceiling light fixtures and cabinet lighting. Tool free snap in design enables 3 second bulb replacement, featuring flame retardant PC material with 120°C heat resistance for enhanced safety and durability. Ideal for DIY enthusiasts and homeowners seeking upgrades to energy efficient lighting systems in kitchens, offices, or retail spaces. Optimized heat dissipation vents reduce bulb operating temperatures by 30%, effectively preventing overheating in enclosed fixtures like wine cabinets or recessed ceiling lamps. Universally compatible with 7W 9W GX53 LED bulbs, this 5 pack adapter set simplifies maintenance while ensuring flicker free illumination across residential and commercial applications. Specifications: Material: PC Size: Approx. 3.03x3.3x0.39inch(7.7x7.7x1cm) Color: Black/White Frequency: 50/60HZ Package Includes: 5PCS Lamp Holder note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.