Product received 3 business days after effective protective commande.Emballage. Single bulb change on the original module. Delicate operation requiring good methodology. No specific hardware, other than a Phillips screwdriver, a connection pod, cutting pliers and flat pliers. No possibility of welding wires, due to the heat in operation. The connection must be by screwing or crimping. The price of the single bulb (one hundred euros) compared to the price of the complete module (around 400 euros), allows you to change more often in order to have an optimum brightness. Especially when used in LAMP HIGH mode that causes faster aging of the bulb, and thus halves the normal lifespan.