Features: E27 to E40 adapter converter, enlarges your lamp base, quickly and easily converts E27 medium screw base to E40 base. Made of high-quality thermoplastic polymer (PBT) fireproof plastic and aluminum material, with solid construction, no fire hazard, high temperature resistance. Compact size and light weight, widely suitable for E27 base fixtures and E40 base LED/halogen/CFL bulbs. Easy to install and plug and play, no tools needed, saving you much trouble and money on replacing your original lighting fixtures. Suitable for home and office lighting, shopping mall lighting, exhibition lighting, art lighting, light boxes, signage lighting, commercial lighting, industrial lighting. Specifications: Material: PBT+Metal Color: White Heat resistant temperature: 120 Rated voltage: 220~230V Size: (Approx.) 8 x 4.5 inches/3.2 x 1.8 cm Package includes: 1pc x E27 to E40 Adapter Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.