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Installer Blog · Free Guides
Installer guides for Christmas light professionals.
Wire gauge selection, C9 install kit sizing, clip picks, color temperature guidance, van kit building, and other reference material for professional Christmas light installers.
Wire
SPT-1 vs SPT-2 Christmas light wire — installer reference
SPT wire is the socket-wire gauge that powers every C9 and C7 Christmas light install. Understanding the difference between SPT-1 and SPT-2 matters because some jurisdictions requi…
Read guide →C9 Kits
How to size a C9 Christmas light install kit
Sizing a C9 Christmas light install kit is a four-step process: measure the linear feet, pick the bulb spacing, pick the wire gauge, and calculate spool count and bulb count with o…
Read guide →Code
Commercial Christmas light wire code — SPT-2 requirements
On commercial Christmas light installs, the socket-wire gauge is not always installer's choice — it's often dictated by local electrical code. Understanding the code framework and …
Read guide →Clips
Magnetic vs ridge vs all-in-one Christmas light clips
The clip is the second-most-important part of a Christmas light install (after the bulb). The wrong clip on the wrong surface either falls off in the first storm or damages the roo…
Read guide →Estimating
How many C9 bulbs do you need for a 6,000 sq ft house?
Estimating bulb count for a 6,000 square foot house before the site walk is a common ask from installers pricing jobs remotely. The answer depends on roof style, run count, and whe…
Read guide →Bulbs
C9 vs C7 bulbs for commercial installs
C9 and C7 are the two standard commercial Christmas light bulb sizes. Understanding the size, output, and base-type difference determines how installers spec bulbs for the primary …
Read guide →Bulbs
Christmas light color temperature guide — 2600K to 6500K
Color temperature is the single biggest visual variable on a Christmas light install. Two identical properties with different color temperatures read as completely different instal…
Read guide →Business
Building your first Christmas light installer van kit
Building a Christmas light install van kit is the difference between a smooth first season and a season spent driving back to the supplier every second job. This guide covers the p…
Read guide →Shipping
Same-day shipping for installer orders
Christmas Light Supplier ships every order the same day it's placed. There's no cutoff time to beat, no order minimum for free shipping, and no fees at checkout. This guide covers …
Read guide →Spools
Christmas light spool math — 250-ft to 4,000-ft selection
Picking spool sizes is a small optimization problem — the goal is to cover the job's linear footage using stock spool sizes with minimum waste and minimum splice count. This guide …
Read guide →Plugs & Cord
Vampire plugs and zip cord: building custom-length C9 runs
Vampire plugs are how professional Christmas light installers turn a 1,000 ft. spool of C9 socket wire into runs that fit a roofline to the inch. Instead of hiding extra wire in a …
Read guide →Power
How many C9 LED lights can run on one circuit?
The number of C9 lights an installer can put on one circuit comes down to three numbers: the circuit's breaker rating, the wattage printed on the bulb, and the rating of the cord a…
Read guide →Bidding
How to price Christmas light installation per foot
Most Christmas light installers quote rooflines by the linear foot because it scales cleanly from a small ranch to a large commercial building. A per-foot price has to cover four t…
Read guide →Timers
Photocell timers for Christmas light installs
A photocell timer turns a Christmas light display on at dusk and off after a set number of hours or at dawn, so the customer never has to touch it. For installers, the timer is the…
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