Energy efficient replacement for a standard incandescent household light bulb, but uses only 5 watts! Emits a bright white color of 5000k which is perfect for indoor lighting as it mimics natural daylight. Suitable for use in indoor or outdoor enclosed fixtures. Nondimmable. These bulbs can directly replace 40 watt incandescent bulbs and provide a cool white light. Features: – UL approved for damp location. – Shatter resistant. – Mercury free. – No ultraviolet (uv) light – won’t cause fading.