Upgraded (Non-)Dimmable A21 27W LED 3000K/5000K Light Bulb(US/CA ONLY)

Features 1. BRIGHT AND EFFICIENT: Compared with other LED bulbs, SANSI's highly efficient light bulbs can provide 4000 lumens using only 27 watts of power, equivalent to 250W incandescent bulbs. Based on 3 hours per day usage, save up to 87% electricity, annual estimated cost 3.25USD.2. FLICKER-FREE: Adopting high light transmission optical lenses, up to 144 LED chips can not only provide you and your family with the light source they need daily but also provide a healthy living or work environment. No flickering, no noise.3. PATENTED CERAMIC TECHNOLOGY: SANSI's patented technology replaces the traditional Mcpcb aluminum substrate with a non-conductive ceramic heat sink, directly soldering the LED chip on the ceramic heat sink, effectively reducing the systematic thermal resistance between the LED PN junction and the surface of the heat sink, resulting in faster heat conduction and higher product reliability, making SANSI's bulbs perform with higher light efficiency.4. SAFE AND RELIABL