What C9 bulb means
A C9 is a large cone shaped holiday bulb used along rooflines. A C7 is the smaller version. Both screw into sockets spaced along a wire.
Also called C9 lights, C7 bulb.
Where it matters on a holiday lighting job
Roofline jobs are priced by the linear foot of C9 lights, so measure the roofline and peaks before you quote. LED bulbs draw far less power, which lets more run on one circuit.
What it costs
Koira's outdoor lighting installation cost guide puts a typical job at $3,500, with most between $2,500 to $5,000. The guide shows its sources and what moves the price. The christmas light installation cost calculator prices a job line by line.
Work it out
- Free calculator: Christmas light installation cost calculator
- Cost guide: Outdoor lighting installation cost
- Tools, templates and guides: Free holiday lighting resources