Key specifications/Special features: LED bulb light, 4watts, E27 screw base long lifespan，wide working voltage, directly replace incandescent and compact fluorescent bulbs. Available in full range of colors. Aluminum-alloy housing, heat-sink design for efficient thermal management & lumen maintenance Specification: LED quantity: 13 pieces low power high-performance LED Total power consumption: 4 watts Input voltage: 185 to 265V AC Size: 60mm x 105mm Beam angle: 120 degrees angle Lamp base: E27 screw base Luminance: up to 450lm IP rating: IP40 (indoor use) Long lifespan: 50, 000+ hours (5+ years) Power-saving: power-saving up to 80% range from 3 to 10W LED bulb comparable to 30 to 60W incandescent bulbs Color temperature: 2,800 to 3,200 (warm white), 3,800 to 4,500 (natural white), 5, 800 to 6,300K (cool white) and other color of red, blue green and yellow are available Materials: aluminum & PC, LED is Taiwan LED chip Eco-friendly: no hazardous mercury or halogen gases, No UV or IR radiation Applications: office, hall way, shopping mall, kitchen, bed room, lobby and boat