Environmentally Responsible Lamps Sustainable lighting solution - Reduces the impact on the environment.;Warranty Period: 12 months. Philips leads the industry with the lowest level mercury technology. Reducing the mercury level (source reduction) during the manufacturing phase is essential to creating products that are less harmful to the environment. Requires a starter or preheat switch. Several seconds of warm-up time is required before starting.;Available in 15 watts Daylight, Warm White, Cool White, Plant Light. 30 watts Daylight ad Cool White. Ideal for under cabinet replacement lighting.