Space → task → budget
Compare two realistic routes, estimate operating inputs and leave room for measurement before committing to a layout.
Before and after the brief
A transparent estimate
Use this worksheet format during early planning. It is an aid to comparison, not a fixture guarantee or a substitute for a photometric plan.
DLI is derived from average PPFD and photoperiod. Record the measurement plane and daylight contribution.
Multiply fixture input power by quantity, then account for dimming schedules rather than assuming full power continuously.
Estimate labor and downtime for driver or fixture replacement, especially above dense racks or active crop zones.
Background: a multi-tier room has limited distance between fixture and canopy. Process: compare low-profile bars using a grid PPFD plan and thermal clearance review. Result: the shortlist prioritizes uniformity and access instead of center intensity alone.
Background: seasonal solar contribution changes the supplemental requirement. Process: combine a DLI objective with daylight sensing and zone behavior. Result: the control brief distinguishes scheduled output from responsive dimming.
Background: staff need accurate visual assessment around a growing environment. Process: review CCT, CRI, TM-30 and glare alongside efficacy. Result: visual comfort becomes an explicit criterion rather than an implied benefit.
Maximum efficacy versus visual quality: lm/W can reduce energy demand, while spectrum, CRI and glare may matter more for some tasks. Integrated versus serviceable: integration can reduce volume; replaceable components may reduce future downtime. Centralized versus distributed control: central policy is simpler to govern, while local zones can improve flexibility and fault isolation.
Send the space, target, schedule and budget range for an application review.