OSRAM COOLBLUE BOOST bulbs with a color temperature of up to 5500°K and up to 50% higher luminous flux emit a uniquely white light. The increase in brightness compared to conventional bulbs makes it easier to distinguish markings and road signs, increasing safety. In addition, the 5500°K color is close to daylight and OSRAM COOLBLUE BOOST is more pleasing to the human eye and may not lead to driver fatigue. These bulbs have a UV filter and therefore you can use them with plastic lenses.