Christmas light string with socket for connecting a further light string

摘要

A Christmas light string includes a plug 10, a power socket 31 on a first cord, a second cord extending from the plug and a plurality of lamps 60 electrically connected in series or parallel and mounted along the second cord. An adapter 50 provides the necessary voltage conversion for the lamps. Another Christmas light string can be plugged into branch socket 31, see figure 3. Hence, a number of Christmas light strings can be assembled together to form a lighting unit having an increased length.