Nanlite Forza 300B 300W Bi-Color Led COB Light- Lab-Test

Standalone Technical Analysis: Nanlite Forza 300B

🔍 Key Specifications

🔎 Performance Analysis

💡 Output Performance

The Forza 300B delivers exceptionally high light output across all color temperatures, ranging from 6,454 Lux at 3200K to an impressive 9,064 Lux at 6500K. Output maintains remarkable consistency through dimming cycles, with 10% power delivering precisely 9.9% brightness - demonstrating near-perfect linear response. Though output consistency is shows a strong variance over the different color temperatures.

Standout Features:

• ✅ Outstanding daylight output: 9,064 Lux at 6500K outperforms competitors
• ⚠️ Mid-spectrum dip: 5500K output (7,889 Lux) falls 13% below 6500K peak

🎨 Color Performance

Color rendering excels with CRI (Ra) values between 95.4-96.9 and excellent TM-30 Rg scores of 101-102, indicating strong color saturation across all modes. While TM-30 Rf (color fidelity) remains stable at 93-94, R9 (red rendering) shows noticeable fluctuation between 91-93. More significantly, SSI (Spectral Similarity Index) drops 11 points from 82 at 3200K to 71 at 5500K.

Standout Features:

• ✅ Exceptional tungsten spectrum: SSI 82 at 3200K shows good performance but no longer industry-leading.
• ✅ Consistent saturation: TM-30 Rg 102 at 3200K/5500K ensures vibrant colors
• ⚠️ Red vulnerability: R9 91 at 3200K limits red-dominant scenes
• ⚠️ Daylight spectrum limitation: SSI 71 at 5500K falls short and is on par with cheaper competitors.

🌡️ CCT Accuracy

All color temperature modes stay within the MK-1 <9 threshold, meaning no color correction gels are required in any setting. The light maintains significantly better accuracy at 3200K compared to daylight modes, with a consistent warm shift observed at higher color temperatures.

Standout Features:

• ✅ Reference-grade tungsten: MK-1 3.67 at 3200K exceeds ±6 “very good” threshold
• ✅ Neutral balance: DUV -0.0043 at 3200K indicates ideal green-magenta equilibrium
• ⚠️ Just good daylight accuracy: MK-1 7.02 at 5500K approaches ideal limit
• ⚠️ Slightly perceptible warm shift: 5500K mode measures 5,721K (+221K deviation)

✅ Strengths

1. Excellent Tungsten Accuracy
   → Industry-best 3200K performance: MK-1 3.67 + SSI 82 requires no correction gels
2. Outstanding Output
   → 9,064 Lux at 6500K + 9.9% brightness at 10% power (±0.04% variance)
3. Stable Colors & Saturation
   → TM-30 Rg ≥101 across all CCTs ensures vibrant, natural-to-saturated colors
4. Cinema-Grade Dimming
   → Near-perfect linearity from 100% to 10% power

⚠️ Weaknesses

1. Daylight Spectral Limitations
   → SSI 71 at 5500K shows weakness compared to competitors
2. Red Rendering Vulnerability
   → R9 91 at 3200K is weakest point for product/portrait work
3. CCT Shift at Daylight
   → 5500K→5721K / 6500K→6798K shifts perceptible in mixed lighting
4. Output Inconsistency
   → 5500K brightness 13% below 6500K peak affects multi-light setups

📉 Practical Applications

• Ideal For:
  → Tungsten-critical cinematography: Narrative films, interviews at 3200K
  → High-output studio lighting: Daylight-balanced key lights at 6500K
  → Precision-controlled environments: Commercials, music videos with dimming needs

• Use with Caution:
  → Spectrally sensitive daylight work: Nature/documentaries at 5500K
  → Red-dominant scenes: Fashion/product shots at 3200K
  → Mixed CCT configurations: Due to output/CCT variance

📌 Conclusion

The Nanlite Forza 300B establishes a new benchmark for tungsten accuracy in LED lighting, delivering reference-grade 3200K performance (MK-1 3.67, SSI 82). Its outstanding 6500K output of (9,064 Lux) without a Reflector and cinema-grade dimming precision make it ideal for professional studio and location work. The light’s primary compromise appears in daylight spectrum performance (SSI 71 at 5500K) and only good CCT accuracy at higher temperatures.

Data Overview

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TM-30-18

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