So with the main safety rule for icicle lights firmly established.
How do you hang icicle lights on gutters.
Today you can purchase led icicle lights that give the same sparkling effect without giving off any heat.
However you may find it easier to hang all of your c7 c9 strings and then come back and attach the icicle lights to the clips.
When icicle lights first came out safety was a concern as they tended to get hot.
These clips will grip shingles or gutters and have a lower hook that holds a light strand or extension cord.
Attach lights along your gutters or roof with plastic clips made for the job.
There are good ways to hang icicle lights and then there are ways that just do not work.
If hanging lights on gutters and planning to hang two light types at once you can fit your icicle string lights into the small anterior hook at the other end of the clip.
Place your ladder on the side nearest your outlet.
Plug a strand of lights into an extension cord long.