The cost of a normal service call is $120, but doesn't give you any discounts.
The cost of a routine maintenance plan visit is a flat $120, but you get 10% off on parts and labor for each visit, along with any other service calls YEAR-ROUND.
So, if you wind up needing service at some other point throughout the year, you're going to save 10% on that entire visit.
It also gives you a 10% discount on system expansions and upgrades.
This is especially cost-effective for homeowners with older lights that have more frequent socket and adjustment issues.
If your lighting system is more than 10 years old, this is the cheapest way to keep it going and avoid the expense of a complete system replacement.