The Westinghouse 4-pack of 1-watt S11 LED Light Bulbs is an energy-saving replacement for specialty incandescent light bulbs. These white finish bulbs light up instantly and are ideal for string lights, signs, and cabinet lights. Approved for damp locations and can be used in outdoor-rated and enclosed fixtures. Long-lasting LEDs are mercury-free, reducing their environmental impact. Product reference number 5511220.