Simulating sunrise inside your room, this 40-watt equivalent bulb turns on softly and warms to its full brightness in seconds, creating a relaxing and comfortable environment. Ideal for use with table lamps or in kitchens, living rooms, and hallways, this 2700-Kelvin bulb has a soft white color. Features a Medium Screw base. Choosing Philips Energy Saver light bulbs helps reduce greenhouse gas emissions and lasts up to 13 times longer than a standard incandescent bulb. Creating an inviting atmosphere around the home, Philips T2 bulb is ideal for use in kitchens, living rooms, dining rooms, offices, family rooms, and bedrooms. Energy Star-certified with a dollars 1.57 estimated annual energy cost.