Created on 01.30

5 Things You Need to Know About CRI (Ra) 💡

Confused by the CRI (Ra) numbers on lighting specs? Here’s what Ra 60, 70, 80, and 90 really mean for your space!

1️⃣ The Core Concept

CRI (Color Rendering Index), shown as Ra, scores how accurately a light reveals colors versus natural sunlight. Higher Ra = truer, more vibrant colors. 🎨

2️⃣ Ra60 ➡️ “Basic”

Significant color distortion. Only for non-critical areas like parking garages or storage where color doesn’t matter. ⚠️

3️⃣ Ra70 ➡️ “Fair”

A common budget baseline. Colors can look dull, especially reds. Suitable for basic warehouses. 📦

4️⃣ Ra80 ➡️ “Very Good” (The Standard)

The industry benchmark for quality general lighting. Accurate for offices, schools, and retail. Ensures a comfortable visual environment. ✅

5️⃣ Ra90+ ➡️ “Excellent” (Critical)

Near-perfect color fidelity. Essential for high-end retail, galleries, museums, and healthcare. For best results, also check the R9 (red) value. 🔴

The Takeaway: Don’t just settle for “bright.” For productivity and well-being, specify Ra 80 as a minimum. Go for Ra 90+ where color truly matters. ✨

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