Get bright white light Choose Philips CrystalVision ultra miniature bulbs for your turn signal, side marker and tail lights. Miniature bulbs by Philips, for over 100 years we have been continuously innovating automotive lighting Always replace in pairs to ensure a symmetric light beam from both bulbs on the road. Bulbs dim over time. When installing a new bulb, never touch the glass. Either use gloves or paper towel when handling.