Connecting Multiple Sets of Christmas Lights Together

 A common question we get is how many sets of lights can you connect together. Below is a guide of how many Christmas Lights you can connect end to end. 

How many C7 and C9 lights can be plugged in together end-to-end?
Up to a combined maximum total of 100 bulbs can be plugged in together end-to-end.

Can I connect together, end-to-end, my 35-light set and my 50-light set and/or my 100-light set?
No. Connect together only light sets of the same type with the same number of bulbs. Different light set styles have different voltages and should not be connected end-to-end.

How many 20-Gauge Twice as Bright, Heavy Duty or Commercial Grade 100-light sets can I plug in together
end-to-end?
You may plug in together a total of six (6) 100-light sets, or a maximum of 600 bulbs.

How many LED light sets can be plugged together end-to-end?
Expanded connection is UL-approved for end-to-end connection up to 210 watts (1.75 amps). Our LED light sets are .04 amp and our 35- and 25-light sets are .02 amp. This means that you can string forty (40) 50-light sets or eighty (80) 35- or 25-light sets end-to-end. Do not interconnect different types of products. Other manufacturers may have different amounts of watts and amps per light set. We only state our LED light sets can be strung 40 or 80 end-to-end. Always check the manufacturer's amp and watt information to determine connection. Do not overload.