Philips 40-Watt A15 Natural Light fan light bulb two-packs are ideal for use in kitchens, dining rooms, family rooms, and hallways. Fully dimmable so you can dramatically change the mood, look and functionality of any room in your home, it has a distinctive blue coating that reduces dull light effects to bring out the true vibrant colors in your home. Philips Natural ceiling fan light bulbs are made with vibration resistant construction to help ensure a long life. Philips fan light bulbs can be used in ceiling fans and decorative light fixtures.