Spectrum by growth phase
Broilers respond best to a red-dominant spectrum (peak around 660 nm) that calms birds and supports weight gain, often with limited blue for activity control. The same red-heavy light is not ideal for layers, which need a more balanced white spectrum — so spectrum should be tuned per phase, not fixed.
Dimming and stress
Broilers are sensitive to light transitions. Sudden on/off scares the flock and triggers crowding and competition. Smooth dimming that simulates sunrise and sunset keeps birds calm, improves uniformity and lifts FCR.
Photoperiod
A scheduled day length with dim periods — not constant light — supports natural growth cycles and better feed intake. The exact program is tuned to the house and breed.
Outcomes you can measure
Operators report 2–4% FCR improvement and more uniform bird weight when moving from fixed fluorescent tubes to tuned, dimmable LED. Pair this with the IWAY poultry fixtures built for broiler and layer houses.