Features: Long lifetime more than 50,000 hours, you don't need to change the bulb for quite a long time. With 360 degree beam angle and strong illumination, the bulb is both nice-looking and practical. It only uses 4 watts of power but is equivalent to a 40 watt bulb, energy-saving and environmentally. Easy to install the bulb as the ordinary incandescent bulbs within a few seconds, no tools required. Great decorations to create the festival atmosphere of Christmas and you can enjoy the visual feast.