Features: Universal E26 aluminum lamp holder with zipper switches design ensures quick tool free installation and broad bulb compatibility for lighting solution. High grade aluminum housing features superior heat dissipation and a threaded locking mechanism that securely fastens bulbs while preventing accidental detachment. Essential for safety families and enthusiasts needing child proof, easily relocatable lighting fixtures in active household areas. Optimizes illumination in workshops, garages, living spaces, and commercial settings requiring maintenance friendly socket adapters. Engineered for continuous operation, this E26 base socket maintains stable electrical connections through vibration resistant construction and thermal efficient metal casing. Specifications: Material: Aluminum Total Length: Approx. 2.64inch(6.7cm) Small Diameter: Approx. 0.55inch(1.4cm) Large Diameter: Approx. 1.18inch(3cm) Package Includes: 4x 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.