AKA "Never-Out" or "Stay Lit"; A Polygroup proprietary “premium” light design that allows the string to stay lit even if a bulb is burnt out. Surebright can also be referred to as dual circuit technology.
- 2012 and older Surebright light strands have fuse bulbs that are glued to the base and CANNOT be replaced. (These can be identified by a white collar around the bulb for green base bulbs) Recommended fix is replacement of whole strand.
- 2013 and newer Surebright light strands have a gray base fuse bulb. These are removable and can be ordered and replaced by consumers.