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Why is Step MacAdam essential in professional lighting, and what are Caro SF's options?

Step MacAdam — or SDCM (Standard Deviation of Colour Matching) — defines colour consistency in LED lighting. It measures how much variation in colour temperature (CCT) may appear between different LEDs or production batches. The smaller the MacAdam Step value, the better the colour uniformity. One Step MacAdam is almost invisible to the human eye. At 2 or 3 steps, only trained lighting professionals may notice a slight variation. However, with 4 or 5 steps, visible differences in white tones often occur, especially when luminaires are installed next to each other. Lighting designers apply different MacAdam Step standards depending on the application:
  • 1–2 Step MacAdam — premium retail, galleries, museums, luxury hospitality
  • 3 Step MacAdam — professional retail, offices, restaurants, hotels (Karizma Luce standard)
  • 4+ Step MacAdam — technical lighting, outdoor, utility areas
At Karizma Luce, we use the 3 Step MacAdam as standard for all luminaires, including Caro SF, our surface-mounted spotlight. This ensures reliable colour consistency across the entire project and guarantees that additional luminaires ordered later will blend seamlessly with the existing installation. For projects where perfect visual uniformity is essential — such as high-end retail or gallery lighting — we offer 2 Step MacAdam LEDs on request, and not only for Caro SF. Get in touch with us for advice and availability. Choosing the correct MacAdam Step is not just a technical specification. It protects the space's visual integrity, maintains the design atmosphere, and ensures long-term quality. Would you like to explore recessed versions of the same high-quality spotlight? Discover Caro REC, offering the same optical performance and colour consistency for ceiling-integrated applications.
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443AB92712F0 2700 K Included ON/OFF 927 (2700K / CRI90) BXRE-27G04FH-C-83 12 ° 650 lm
443AB93012F0 3000 K Included ON/OFF 930 (3000K / CRI90) BXRE-30G04FH-C-83 12 ° 680 lm
443AB94012F0 4000 K Included ON/OFF 940 (4000K / CRI90) BXRE-40G04FH-C-83 12 ° 690 lm
443AW92712F0 2700 K Included ON/OFF 927 (2700K / CRI90) BXRE-27G04FH-C-83 12 ° 650 lm
443AW93012F0 3000 K Included ON/OFF 930 (3000K / CRI90) BXRE-30G04FH-C-83 12 ° 680 lm
443AW94012F0 4000 K Included ON/OFF 940 (4000K / CRI90) BXRE-40G04FH-C-83 12 ° 690 lm
443CB92715F0 2700 K Included ON/OFF 927 (2700K / CRI90) BXRE-27G10FH-A-83 15 ° 1200 lm
443CB93015F0 3000 K Included ON/OFF 930 (3000K / CRI90) BXRE-30G10FH-A-83 15 ° 1250 lm
443CB94015F0 4000 K Included ON/OFF 940 (4000K / CRI90) BXRE-40G10FH-A-83 15 ° 1250 lm
443CW92715F0 2700 K Included ON/OFF 927 (2700K / CRI90) BXRE-27G10FH-A-83 15 ° 1200 lm
443CW93015F0 3000 K Included ON/OFF 930 (3000K / CRI90) BXRE-30G10FH-A-83 15 ° 1250 lm
443CW94015F0 4000 K Included ON/OFF 940 (4000K / CRI90) BXRE-40G10FH-A-83 15 ° 1250 lm
443DB92725F0 2700 K Included ON/OFF 927 (2700K / CRI90) BXRE-27G20FH-B-83 25 ° 1300 lm
443DB92735F0 2700 K Included ON/OFF 927 (2700K / CRI90) BXRE-27G20FH-B-83 35 ° 1300 lm
443DB92745F0 2700 K Included ON/OFF 927 (2700K / CRI90) BXRE-27G20FH-B-83 45 ° 1300 lm
443DB92760F0 2700 K Included ON/OFF 927 (2700K / CRI90) BXRE-27G20FH-B-83 60 ° 1300 lm
443DB93025F0 3000 K Included ON/OFF 930 (3000K / CRI90) BXRE-30G20FH-B-83 25 ° 1400 lm
443DB93035F0 3000 K Included ON/OFF 930 (3000K / CRI90) BXRE-30G20FH-B-83 35 ° 1400 lm
443DB93045F0 3000 K Included ON/OFF 930 (3000K / CRI90) BXRE-30G20FH-B-83 45 ° 1400 lm
443DB93060F0 3000 K Included ON/OFF 930 (3000K / CRI90) BXRE-30G20FH-B-83 60 ° 1400 lm
    • Chromaticity tolerance 3 MacAdam
    • CRI 90
    • Housing material Aluminum Die Cast
    • Warranty 5Y
    • IP klass IP20
    • Drivdon Included DALI, Included ON/OFF
    • Light source energy class E
    • Product tags NEW
    • Light source Dim to Warm (1800K - 3000K / CRI90), 930 (3000K / CRI90), 927 (2700K / CRI90), 940 (4000K / CRI90)
    • Optic Reflector
    • Mått Ø50x165mm
    • Light source identifier BXRE-30G20FH-B-83, BXRE-27G20FH-B-83, BXRE-40G20FH-B-83, BXRE-40G10FH-A-83, BXRE-30G10FH-A-83, BXRE-27G10FH-A-83, BXRE-40G04FH-C-83, BXRE-30G04FH-C-83, BXRE-27G04FH-C-83
    • Dimring DALI, Phase Cut

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