Philips 800 series provides high color rendering meaning the objects this bulb is lighting up will be sharp and in focus with true colors. The ALTO technology this bulb offers provides less mercury than traditional bulbs, making it more environmentally friendly. Cool white light is best used in a kitchen, bathroom, office or retail space where task lighting is needed. This bulb will provide more of a blue than yellow light and is a clean crisp light with the ability to set the mood you are trying to achieve whether it be merchandising a store or cutting vegetables. 30-Pack Only