Philips LED bulbs with a warm glow dimming effect, dim just like traditional incandescent bulbs. They get warmer in tone as the light gets dim. Other LED bulbs simply get less bright, without the cozy glow. Comfortable light: Our products meet strict test criteria including flicker, strobe, glare and color rendition to ensure they meet EyeComfort requirements; Switch to Philips LED, light that’s designed for the comfort of your eyes. LED light bulbs last up to 10X longer than incandescent and halogen bulbs. Unlike fluorescent and compact fluorescent bulbs, Philips LEDs are mercury-free so they don't contribute to hazardous waste PHILIPS PLC 4W (40W) G16.5 LED MD CLR SW- 2 BULBS (1 PACK) (TITLE 20 CERTIFIED)