If RICK is truly in Madrid, Spain - he did NOT buy those bulbs from EC... we do NOT ship internationally
And for something to burn out like that;
either they were too high wattage...
low quality bulbs...
not securely plugged in...
or there was water/condensation involved during his installation... in which case some non-conductive lubricant should have been used during his installation.
some of you have noticed the thick honey-like gel on your headlamp electrical connectors... it's there for a reason - it's to help prevent what you have seen in the pictures posted above
When mechanics work on electrical circuits (primarily lighting and lighting sockets), they frequently use INOX, which is a good anti-corrosion penetrant and lubricant for electrical fittings & systems. It also unseizes light fittings & switches, keeps them operational & free from corrosion & moisture, can use it on all stop, tail, clearance lights, etc. It is a good anti-moisture product for coils, plugs, distributors, cable joints & connectors also keeps out corrosion to those locations as well ( http://www.lockandsupply.com/inox_lubricant.htm
Sometimes WD-40 or Valvoline Lubrication Spray is also used - but I prefer to stay away from WD-40 when it comes to plastics.