21 SMD 4.4W PAR20 LED light bulb E26 base 300 lumens replace 40W incandescent downlight BLUE color hydroponic grow light

This PAR20 light bulb uses 21 pieces of high efficiency SMD (Surface Mount Device) LEDs to produce as much light as 100 pieces of common top view LEDs. Due to it's surface mount design, the heat dissipation is more efficient and that translate into more power output and longer life. At its peak efficiency, it produces over 70 lumens per watt, which is about 10X more efficient as incandescent bulbs and 2~3x more efficient than a compact fluorescent bulb! This is the ultimate power saving light bulb! It also lasts over 50,000 hours. If you keep it on 8 hours a day, 365 days a year, it won't burn out in 17 years! Please refer to the household lighting technology comparison table for the benefit of switching to LED lighting This LED bulb produces a pure blue color. It can be used as mood enhancement to combat SAD or in bars. Some people also use it to supplement the lack of blue spectrum in HPS grow lighting.