Voltec 08-00200 12/3 STW 10-Light String Metal Cage Light String, 100-Foot, Yellow & Black All of Voltec's light strings have pre-assembled cages which saves you time, as well as the cost of installation Sockets are spaced every 10 feet and are the perfect solution to your temporary lighting needs such as construction sites & parking lots UL listed and it carries the UL approval for Canada as well. Jacket resists the harmful effects of abrasions, moisture and sunlight Flexible jacket allows you to utilize cord in temperatures ranging from -58?F to 221?F