Field Adjustable Light Distribution (FALD)

A dimming type where products are capable of being adjusted to decrease or increase lumen output and wattage from the default setting. The default setting is defined as the setting at which the product emerges from production and is shipped with no adjustments to lumen output. The field-adjustable set point is fixed by the manufacturer, distributor, installer, or commissioning agent before or during installation or commissioning, via a control that is made discrete to that purpose via a proprietary process or separate control (i.e., not part of a regular occupant- or sensor-facing control system). Typically, the field-adjustable light output settings are not intended to be occupant interfacing. Aimable products, such as flood lights, are considered to have field adjustable distribution. Area and roadway lights that allow adjustments of up to 10 degrees may choose to identify as FALD the QPL or not, per the discretion of the manufacturer.