![]() ![]() The S/P ratio of the light coming from this lamp is 1.2. The power spectrum, sensitivity curves and resulting scotopic and photopic spectra (spectra energy content defined at 1 m distance). This is the maximum percentage of the total of photons in the light that is effectively used by the average plant (since the plant might not take 100 % of the photons at the frequency where its relative sensitivity is 100 %). The PAR efficiency is 65 % (valid for the PAR wave length range of 400 – 700 nm). The photon spectrum, then the sensitivity curve and as result the final PAR spectrum of the light of this light bulb parameter To make a statement how well the light of this light bulb is for growing plants, the PAR-area needs to be determined. The maximum variation of color temperature in the first 90 degrees of this inclination area is about 6 %. The maximum variation of color temperature in the first 90 degrees of this inclination area is about 6 %.įor the C90-C270 plane: the beam angle of 323 deg is equivalent to 161.5 deg inclination angle,which is the area where most of the light falls within. Beyond that angle has not been measured.įor the C0-C180 plane: the beam angle of 323 deg is equivalent to 161.5 deg inclination angle,which is the area where most of the light falls within. The color temperature is given for inclination angles up to 90 deg. Below a graph showing the color temperature for different inclination angles.Ĭolor temperature as a function of inclination angle. This color temperature is measured straight underneath the light bulb. The measured color temperature is 2664 K which is warm white. The spectral power distribution of this light bulb, energies on y-axis valid at 1 m distance. Warm up effect: During the warmup time the illuminance varies during 5 minutes and decreases with 12 %.ĭuring the warmup time the power doesn’t vary significantly ( 2 hours onĬolor temperature and Spectral power distribution ![]() The temperature of the lamp gets maximally about 26 degrees hotter than ambient temperature. The ambient temperature during the whole set of illuminance measurements was 24.7 – 24.8 deg C. It is the surface of the sum of all LED wires. This factor indicates the amount of times more efficient the light of this light bulb is perceived under scotopic circumstances (low environmental light level).ĭimensions of the luminous area (used in Eulumdat file). The total number of photons in the light of this lamp. It indicates a kind of efficacy in generating photons. The total emitted number of photons by this light, divided by its consumption in W. Value valid at 1 m distance from light bulb. The number of photons seen by an average plant when it is lit by the light of this light bulb. This lamp is connected directly to the grid voltage. QCS (v9.0.3) is an improved indicator (over CRI) of how well colors are rendered. This label is an update of the previous version, and compulsory from Sept 2013. The energy class, from A++ (more efficient) to E (least efficient). Measured with photogoniometer, calculation done as described in LM79-08. This current has been found at a voltage start angle of 90 degrees. Is a measure for the amount of flickering.ģ23 deg is the beam angle for all C-planes since the lamp is symmetrical along its 1st axis.Īn electrical load with this power factor means that for every 1 kWh net energy consumed, there has been 1.75 kVAhr for reactive energy. Measured with a light sensor looking at the lamp (angle not defined). See this overview for a comparison with other light bulbs. This article shows the measurement results. The lamp consumes 6.4 W and has a luminous flux of 640 lm. The measurements from OliNo show that the lamp emits a warm white light with a color temperature of 2664 K. ![]()
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