Feature: 1. High light efficiency, low heat generation, high light energy conversion rate. 2. Healthy light, no ultraviolet and infrared, no radiation, no harmful elements, green and environmentally friendly, no electromagnetic interference. 3. The safety factor is high, the required voltage and current are small, the heating is low, and there is no safety hazard. It can be used in dangerous fields such as mines. 4. High efficiency and energy saving, low energy consumption, super long life, theoretical life span can reaching more than 100,000 hours. 5. Suitable for bedroom, corridor, bathroom, hotel, bar, western restaurant, building ambience, home lighting, entertainment place, shopping mall, office building, exhibition hall, project planning and other lighting. Specification: Condition: 100% Brand New Item Type: Light Bulbs Material: PC Color: As shown in the picture Size: Approx.8x4.5cm/3.2x1.8in(L x D) Weight: Approx.316g/11.1oz Base Type: E27 Input Voltage: AC85V-265V Output Voltage: 4V-4.5V Power Conversion Efficiency: More than 70% Power: 40W Remote Control Battery: 1 x CR2025 button battery (Included) Working Temperature: -20-+40℃ Light Color: RGB Product Change Effect: 1. Color Mode: 16 single-color changes, seven-color gradient, seven-color jumping change, three-color gradient, and three-color jumping change. 2. Monochromatic color brightness is adjustable, three kinds of brightness corresponding to fixed color can be selected through the remote control, the default is medium brightness. 3. The speed of gradient and jumping change is adjustable. When the mode is seven-color gradient, seven-color jumping change, three-color gradient, and three-color jumping change, their speed is adjustable in three levels. 4. Simple operation, infrared remote control, one remote control can control multiple bulb lights. . Package List: 4 x Light Bulbs2 x Remote Control Note: 1. Please allow 1‑2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.