Heat stress is one of the most costly threats in modern dairy operations.
It impacts milk production, fertility, and overall herd health. The key metric? THI — Temperature-Humidity Index — which combines temperature and humidity to measure the stress cows experience.
While traditional spray cooling systems provide relief, their effectiveness drops off quickly in high humidity.
That’s where the Night Simulator™ Smart Circadian Lighting System comes in. When combined with targeted spray cooling, it can reduce the effective THI by up to 15 points — a game-changing result for dairy farms.
More Than Light: How Smart Fixtures Cool Your Barn
When cows face heat stress, their body temperature rises rapidly, lowering feed intake and milk yield. Spray systems help, but high humidity limits their impact. Night Simulator™ lights feature high-reflectivity white housings that act like radiant heat shields — reflecting solar and surface heat away from the cows instead of letting it be absorbed.
Why 5000K Cool White Matters
Our High-intensity cow lighting use 5000K 'cool white' LED technology — not just for brightness, but to lower radiant heat. Compared to warm yellow lights (2700K-3000K), Cool Automatic lighting for dairy farms emits far less infrared radiation. That means our fixtures don’t add extra heat, helping cows feel cooler, even if the air temperature remains unchanged.
Three Layers of Cooling. One Integrated System.
Spray Cooling: Active evaporative cooling, especially effective in dry climates.
Reflective Lighting: Passive radiant heat reduction — works even in high humidity.
Cool White Spectrum: Lights that don’t act like heaters.
Together, this synergy creates a layered thermal defense. Cows stay more comfortable, active, and productive — even in extreme conditions.
Smart Cooling = Better Comfort. Better Milk. Better ROI.
Deploying Night Simulator™ fixtures alongside your existing spray systems builds a more complete heat mitigation strategy. Farms report lower stress signs, better milk consistency, and long-term performance gains. Some operations have seen up to 10:1 ROI.
This is smart dairy management — science-backed, energy-efficient, and built for modern barns. Want to see how it works in your barn?
Click here to learn more: https://www.nightsimulatorfixture.com/