Verbatim A19 9-Watt Replacement for 40 Watt Incandescent Dimmable LED Light Bulb 97583 Reduces energy consumption by over 70-percent when compared to traditional incandescent bulbs 40,000 hour lifetime reduces maintenance costs Compatible with most commercial dimmers, offering 10 -100 percent dimming performance Optical design provides uniform illumination Cool LED light protects illuminated objects from radiated heat effects and reduces A/C loads