... light bulb, led light bulb, led street light bulb, dimmable led chandelier light bulb, candle flame light bulbs, energy saving light bulb, incandescent tube lighting bulbs, high power ... copper heat conductor and external aluminum housing5. Light source: High power led 3W, 4W, 5W, 6W, 7W ... 3% - 5%1kh9. Lifespan: 50,000 hours 10. No UV or IR radiation enviromental protection SPECIFICATIONLED ...