China Factory St64 4W 470lm LED Filament Bulb

China Factory St64 4W 470lm LED Filament Bulb. Wide Color Temperature Range: Adjustable from 2200K to 6500K to suit various lighting needs. Dimmable Functionality: Supports dimming from 5% to 100% for flexible lighting control. High Energy Efficiency: Efficiency reaches 100-120lm/W with 4W power and 470 lumens. Premium Glass Construction: Available in Clear, Milky, or Golden glass shell options. OEM and ODM Services: Professional R&D engineers available for custom design and production. Long Working Lifetime: Designed for 15,000 to 20,000 hours of continuous use. Versatile Voltage Input: Supports 90-120V and 200-250V for global compatibility. Standard E26/E27 Base: Compatible with standard household sockets for easy installation.