5m LED strip HELMI, 3500K, 24V, 17W/m, IP20, CRI96
Our HELMI LED strip has a luminous intensity of 18W/m and a staggering 240 LED circuits per metre. This makes the light very even. Even with a low aluminium profile, there is no visible pinpointing and the light is uniform. In this strip light we use SMD 3528 LED circuitry with a colour rendering index of a staggering CRI96. This LED strip is dimmable and suitable for use in dry areas (IP20).
- 1333 lumens/m
- 3500K
- Connecting wires at both ends
- Cut points every 2,5cm
- Excellent colour rendering, CRI96
- Delivery status In Stock
- Brand Ledstore
- Breadcrumbs Home By featuresVoltsLED 24V 5m LED strip HELMI, 3500K, 24V, 17W/m, IP20, CRI96
- Category LED 24V
- SKU STRIP17-24v-IP20-3500-SMD
- Lumen 1333
- Led strip width (mm) 12
- Led strip cutmark (mm) 25
- Led chip Qty / m 240
- Efficiency (lumen/W) 74
- Lux at 1m 398
- Led input current (mA) 750
- Led strip tech SMD
- Power per meter (W) 18
- Total power for 5m roll of Led strip (W) 90
- R9 (RED) value 81-90
- Size 12x2
- Wattage 17
- Colour temperature (K) 3500
- Light control One colour
- Colour rendering (CRI ±3) 96
- IP class IP20
- Angle of light opening 130
- Immennys Dimmable
- Led Votlage (V) 24
- Guarantee (year) 3 years
- Life span 35000
- Approval RoHS, CE
- Designed in Finland No
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WHAT IS CRI, THE COLOUR RENDERING INDEX
High quality LED lights also have a high colour rendering index, or CRI. A good colour rendering index (CRI) for home use is above 90, and nowadays many market lights are unfortunately closer to 80.
CRI tells you how well an LED light displays colours as they should be. For designers and architects, as well as interior designers, it should be one of the most important considerations. Make sure the lighting is perfect so that your artwork is what it is meant to be.
Colour rendering index
The colour rendering index is expressed as a number on a scale from zero to 100, where 0 = no colour rendering and 100 = full colour rendering. The colour rendering index of LED lights is also known as Ra, which is measured on a smaller scale than CRI. This Ra value does not include red tones or skin tones, for example, so it is a 'glossed' figure for the true quality of an LED light.
RA value
The Ra value measures the reproduction of colours using eight different reference colours. CRI takes into account the wider (15) wavelength range, including reds and other warm colours.
The Ra value is calculated by cutting the wavelength range, weighting the blue and violet tones, and calculating the weighted average of R numbers 1-8.
Excluded from the Ra value are, for example, the colour rendering of bright reds, yellows and greens, and shades close to skin tone. These are described by R-values between 9 and 15. The following is a picture of a measurement result that easily confuses the consumer.
This measurement is from a 9W CCT Led spot
Read more on this topic:
Colour rendering of LEDs - What is the difference between CRI and Ra-value?