Usage Tips:Compatibility&Life Span: P21/5W Led bulb,drl daytime running light For Fiat panda Mk3 312 2012-2022,For Fiat Panda Van Mk3 312 2012-2014,Note: Only for factory halogen version! Energy safe design, makes our P21/5W LED bulbs life span more than 30,000hrs, and environment friendly features. CrossReference: BAY15d P21/5W BAY15D 1157 Ba15d.Super High Brightness: 300% Brighter than stock halogens,each Bay15d P21/5w bulb is equipped with high quality SMD LED chips, giving 2000M/Set light output. 6000K xenon white has better penetration and softer light. Works steadily in rainy, snowy or foggy day, giving you a clearer, wider view in bad weather.Perfect Beam Pattern: 1:1 Size, same light filament position. Bay15d LED P21/5W perfectly simulates the factory halogen 1157 bulbs beam pattern, come out 360 full angle illumination. No shadows, no dark spots,makes your panda 312rs daylight bulbs more visible to other road users, reduce the risk of road accidents.Plug & Play, All-in-one Design: Our P21/5W LED bulbs are wireless designed, just replace the factory bulbs directly.Compatible friendly to your fiat panda. All you need to do is remove the old halogen daylight bulb and plug in our P21/5W LED Bulb.