CBConcept 2-Pack, 4 Watt, 360 Lumen, ST18 E26/E27 Edison Style LED Vintage Antique Filament Bulb,Dimmable,Exclusive Candlelight Warm Glow 1800K ,40W Equivalent,Filament Replacement Incandescent Bulbs Minimizes energy consumption and replacement costs by up to 90% throughout the year. Save energy using only4watts compared to 40-watt incandescent equal Environmentally friendly, does not contain mercury or lead Illuminates at a 1800K, Candlelight warm glow color temperature Dimmable down to 30% with theappropriate dimmer switch Clear ST64 glassbulbwithmedium(E26/E27) base, 120 Volt