With a lifetime of up to 15,000 hours, this Philips LED lamp will provide your desired atmosphere for up to 15 years. By replacing traditional incandescent lamps with an alternative Philips LED lamp, you get immediate, significant energy savings while contributing to a sustainable planet. No need to wait: Philips LED lamps shine at full brightness as soon as they are switched on. Light can have different colour temperatures, which are expressed in units of Kelvin (K). Lamps with a low Kelvin value produce a warm, cosier light, whereas lamps with a higher Kelvin value produce a cool, more invigorating light.