This E12 bulk spool is the go-to choice for professionals and decorators who need maximum flexibility. By pairing with slip-on plugs (sold separately), you can cut, customize, and create the exact runs you need without wasted wire. Perfect for rooflines, large trees, commercial buildings, or permanent lighting installs. Compatible with both LED and incandescent C7 or G40 bulbs for a traditional or energy-saving setup.

E12 base stringer fits perfectly into C7 or G40 bulbs, just screw them on the base. This commercial christmas lights spool is waterproof, sturdy, and can withstand extreme weather such as rain, snow and wind, made of heavy duty thick 18AWG SPT-1 wire, so you can enjoy your Christmas lights all season long or all year long.