Lemonbest 4W LED Spot Light Bulb, E27 Standard Screw Base, 35W Incandescent Equivalent, Cool White Lemonbest high quality standard; energy saving E27 LED Spotlight; Ideal for halogen replacement Low light decline with high brightness; High energy efficiency & spaced edge for heat sink Superior imported Die-casting Aluminum in beautiful appearance; high thermostable conjoined lens No UV or IR Radiation; 48 hours aging time; over 50,000 hours lifespan guaranteed Ideal for office, exhibition, home, indoor use