High color rendering index led fluorescent lamp Ra95 replaces Philips TLD fluorescent lamp
The high color rendering index LED fluorescent lamp recently developed by Langte Company is Ra=95, red R9=92, blue R12=92, leading in the same industry. The color temperature is 7500K, and the error of positive and negative is 200k, which is extremely difficult. CRI parameters R1=96, R2=98, R3=95, R4=96, R5=98, R6=93, R7=94, R8=97, R10=98, R11=91. The parameters can be customized. It is widely used to restore the color of the object itself. It is suitable for special industries such as printing, ink and chemical industry.
The parameters are
1.2m led tube
Power: 18w
CRI: 95
Length: 1198
Lamp beads: 2835
Luminous flux: 1900lm
Light efficiency: 100lm/W
Wide voltage: 85-305v
Power factor: 0.9
Shell: aluminum alloy
Power supply: constant current
Life: 50000 hours.
At the same time can produce dimming type
Use high-efficiency LED lamp beads
How is the high CRI determined?
The color rendering index of sunlight is defined as 100, and the color rendering index of incandescent lamps is very close to sunlight, so it is regarded as an ideal reference light source. This system uses 8 standard color samples with medium chroma to test, compare the deviation degree of the 8 colors under the test light source and the same color temperature benchmark, to measure the color rendering index of the light source, and take the average deviation value Ra20-100 , 100 is the highest, the greater the average color difference, the lower the Ra value. Light sources below 20 are generally not suitable for general use.
Index (Ra) Grade Color rendering General application
90-100 1A Excellent Places where precise color contrast is required
80-89 1B Places that require correct color judgment
60-79 2 Normal Places requiring medium color rendering
40-59 3 Places with low requirements for color rendering and small color difference
20-39 4 Poor Places with no specific requirements for color rendering
The theoretical color rendering index of incandescent lamps is 100, but there are many types of incandescent lamps in real life and their applications are different, so their Ra values are not completely consistent. It can only be said that it is close to 100, which is the lamp with the best color rendering. The Ra value of specific lamps can be seen in the table below.
Light source color rendering index Ra
Incandescent lamp 97
Daylight fluorescent lamp 80-94
White fluorescent lamp 75-85
Warm white fluorescent lamp 80-90
Tungsten halogen lamp 95-99
High-pressure mercury lamp 22-51
High pressure sodium lamp 20-30
Metal halide lamp 60-65
Sodium thallium indium lamp 60-65
Dysprosium lamp above 85
What's wrong with Philips high CRI fluorescent lamps? TL-D type parameter list
TLD 18W/930 18W 3000K 940lm 95Ra G13 15000H 26mm 10 imported
TLD 18W/940 18W 3800K 1000lm 95Ra G13 15000H 26mm 10 imported
TLD 18W/950 18W 5000K 960lm 98Ra G13 15000H 26mm 10 imported
TLD 18W/965 18W 6500K 870lm 98Ra G13 15000H 26mm 10 imported
36W luxury straight tube fluorescent lamp
TLD 36W/930 36W 3000K 2250lm 95Ra G13 15000H 26mm 1213.6mm 10 imported
TLD 36W/940 36W 3800K 2400lm 95Ra G13 15000H 26mm 1213.6mm 10 imported
TLD 36W/950 36W 5000K 2300lm 98Ra G13 15000H 26mm 1213.6mm 10 imported
TLD 36
