MegaUniversal 12-Watt A19 light bulb replaces 40W-50W incandescent light bulb with elegant super light design and COB packaging. It shines brightly, dims smoothly and saves at least 85% of energy. It is environmental friendly to use at your home. 2 different color temperature of warm white 3000K and cool white 5000K. MegaUniversal product has average life of 25,000 hours backed by manufacture warranty of 2 years.