Recently, according to foreign media reports, OSRAM Opto Semiconductors successfully increased the luminous efficiency of warm white LED light sources to 142 lm / W, setting a new laboratory record. At a correlated color temperature (CCT) of 2755 K, the color rendering index (CRI) of the LED is as high as 81. These values ​​were measured under standard conditions: at room temperature, using a pulse mode with an operating current density of 350 mA/mm2.
Bright and efficient warm white light is especially important for residential lighting applications. The laboratory solution for warm white LEDs demonstrates the enormous potential of these energy-efficient semiconductor light sources: the peak value of 142 lm/W is successfully measured under standard conditions, and the color perception is also very close to that of traditional incandescent lamps (color coordinates cx 0.46 on Planck's trajectory / Cy 0.41).
Dr. Norwin von Malm, former development manager of Osram Opto Semiconductors' German headquarters, said: "If we further develop in this direction and allow deviations from the Planckian trajectory, we are able to achieve higher luminous efficacy values, up to 160 at a correlated color temperature of 3000 K. Lm/W (cx 0.45 / cy 0.44). If this technology is applied to a 2 mm2 chip, the operating efficiency can be increased by 10% to 15% under the same operating current, that is, the pure warm white LED The efficiency is expected to reach 180 lm/W while achieving good color rendering."
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The key to the improvement in light efficiency is the combination of new processes in film and UX:3 chip technology with new processes of conversion. Through the integration of expertise in all aspects of the production process, including epitaxial growth, thin-film chip architecture, conversion process and packaging technology, Osram Opto Semiconductors' R&D engineers have benefited a lot.
Bright and efficient warm white light is especially important for residential lighting applications. The laboratory solution for warm white LEDs demonstrates the enormous potential of these energy-efficient semiconductor light sources: the peak value of 142 lm/W is successfully measured under standard conditions, and the color perception is also very close to that of traditional incandescent lamps (color coordinates cx 0.46 on Planck's trajectory / Cy 0.41).
Dr. Norwin von Malm, former development manager of Osram Opto Semiconductors' German headquarters, said: "If we further develop in this direction and allow deviations from the Planckian trajectory, we are able to achieve higher luminous efficacy values, up to 160 at a correlated color temperature of 3000 K. Lm/W (cx 0.45 / cy 0.44). If this technology is applied to a 2 mm2 chip, the operating efficiency can be increased by 10% to 15% under the same operating current, that is, the pure warm white LED The efficiency is expected to reach 180 lm/W while achieving good color rendering."
The key to the improvement in light efficiency is the combination of new processes in film and UX:3 chip technology with new processes of conversion. Through the integration of expertise in all aspects of the production process, including epitaxial growth, thin-film chip architecture, conversion process and packaging technology, Osram Opto Semiconductors' R&D engineers have benefited a lot.
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S/N
|
Project
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General Parameter
|
|
1
|
Number of series
|
15S
|
|
2
|
Rated voltage
|
48V
|
|
3
|
End of discharge voltage
|
40V
|
|
4
|
Charging voltage
|
Recommend 51V (50.5V – 51.5V) for floating charge
Recommend 54V (53.5V – 54.5V) for equation charge |
|
5
|
Continuous charge and discharge curren
|
≤100A
|
|
6
|
Internal resistance (battery pack)
|
≤100mΩ
|
|
7
|
Self-discharge rate
|
≤2%/month
|
|
8
|
range of working temperature
(≤95%R.H.) |
0~65℃ charge
-20~65℃ discharge |
|
9
|
Storage temperature range(≤95%R.H.)
|
-40~70℃
|
|
10
|
Positive and negative lead way
|
Fence Terminal 2P*2
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|
11
|
Display screen
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LED display, four physical buttons
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|
12
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Protective function
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Overcharge, over discharge, short circuit, overload, over temperature, etc.
|
|
13
|
certificate
|
MSDS,ISO9001,CE,UN38.3,ROSH
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LIFEPO4 Battery For Home Energy Storage
Jiangsu Zhitai New Energy Technology Co.,Ltd , https://www.ztbatteries.com