The Hermosa Bollard blends understated elegance with engineering features only available from Auroralight. The ALP feature adjusts the cap assembly and exposes varying lens surface area, thereby controlling the amount and radial spread of light, adjustment can be locked in place once set. Recommended spacing ranges from 10' on center for smaller models to 25' on center for the taller larger units. Select any one of five mounting options appropriate for the voltage selected 12v or 120v. Manufactured exclusively in the USA by Auroralight and backed by our Lifetime Warranty.