3-Pack E26/E27 to E39/E40 Adapter JACKYLED Medium(E26/E27) to Mogul (E39/E40)Light Bulb Lamp Socket Converter Max Watt 660W FEATURE:3-pack of E26 to E39 adapter. PBT plastic and aluminium material, max wattage660W, max voltage230V,223C melting point and plasticity at 125C APPLICABLE MODEL: Medium(E26/E27) to Mogul (E39/E40)Light Bulb Lamp Socket Converter EASY TO USE: Simple design and plug and play,no tools needed to save your installation time WIDE APPLICATONIdeal for any occasion.Home and office lighting, shopping mall lighting, display case lighting, art lighting, light boxes, board lighting, commercial lighting, industrial lighting 100% SATISFACTION GUARANTEE: We strive to provide each customer with the highest standard of customer service to ensure you have a pleasant shopping experience. If you have any issues, inquiries or need assistance, please feel free to contact us directly. 30-day money-back guarantee for any reason, 12-month warranty for quality-related issues.