Photocatalysis series LEP

Photocatalytic and photoaging plasma light sources (LEP) are currently the closest continuous full-spectrum light sources to sunlight, with a spectral wavelength range of 295nm-1800nm, constant color temperature, extremely low light decay, and no flicker. The spectral color temperature type can be customized according to demand. The average power of this model of LEP light source is 270W, and the irradiation power density reaches above AM1.5 (≥1000W/m2). The spectral matching, irradiation stability, and irradiation uniformity with sunlight can reach the 3A+ level of the international standard for solar simulators. The central illuminance can reach 12,0000Lux, the light energy can reach 35714 lm, and the color rendering index is Ra92~97. After 50,000 hours of continuous use, the luminous flux remains above 80%.

I. Characteristics of the Photocatalysis series LEP light source

1.1. Characteristics of LEP spectrum

LEP-S-300-V26592-02 Photocatalytic photoaging LEP light source is a continuous full-spectrum white light. The illuminated objects are displayed as clearly as in the daytime sunlight. It has the characteristics of excellent color rendering, constant color temperature, extremely low light decay, no flicker, high brightness, strong fog penetration, energy saving and high efficiency.

The color temperature is 4500K-6500K, visible light accounts for 70%, invisible light accounts for 30%, red and blue light accounts for 68% of the visible light, and the proportion of each wavelength in the spectrum is very close to the spectrum of sunlight,  see the table below:

Comparison between sunlight and several commonly used electric light sources

Compare   Projects→Spectrum   share(%)Visible   light color ratio(%)Color Rendering IndexLight-dark visual ratioService life (h)
Light source category↓UV   lightVisible   lightIR   lightRed   lightGreen   LightBlue   light
Sunlight D5055045433226992.2/
Sunlight D6555045403129992.4/
LEP (CASM D65)97021383230952.350000   (continuous)
High CRI Full Spectrum LED0~100045361998.61.650000
Simulated sunlight spherical xenon lamp0-530-356549262594.52.2800
High CRI Full Spectrum Ceramic Metal Halide Lamp<5~55~40423721961.916000


1.2. Physical characteristics of LEP light source

LEP light sources all use high-purity quartz bulbs with extremely high light transmittance. They are resistant to high temperatures and can be used for a long time at 1100°C without bursting. Their safety performance is higher than that of ceramic glass bulbs.

With excellent natural heat dissipation performance, the integrated LEP light source (including amplifier, power supply and lamp holder) can keep the temperature as low as 58℃ (room temperature @ 32℃) during long-term operation.

The radiant heat of LEP light source during operation is significantly lower than that of LED.


1.3. Application advantages of the Photocatalysis series LEP

LEP-S-300-V26592-02 Photocatalysis, photoaging The luminous efficiency of LEP light source is 40% higher than that of HID; in the field of high lumen applications, the cost is lower than LED, and it can be used as a light source for sunlight simulation systems in various fields, such as light sources for experimental equipment in the fields of photochemistry, photocatalysis, photoaging, light testing and analysis, biological research, photochromism, photopolymerization, and photodegradation.

The power density of the photocatalytic and photoaging LEP light source reaches above AM1.5 (≥1000W/m2), and the irradiation intensity reaches above 1.0Sun. The spectral matching, irradiation stability and irradiation uniformity with sunlight can reach the 3A+ level of the international standard for solar simulators.

The following is a list of the central illuminance of simulated sunlight at different distances of 15-120cm: 114100Lux@15cm to 28000Lux@120cm (equivalent to direct sunlight at noon in summer)

The following is a list of the central illuminance of simulated sunlight at different distances

Application advantages of the Photocatalysis series LEP


II. Technical parameters of the Photocatalysis series LEP light source

2.1. Parameters of the Photocatalysis series LEP light source

Product modelLEP-S-300-V26592-02
Product seriesPhotocatalysis series LEP Light Source
Spectral range295 nm-1800 nm
Initial luminous flux25000 lm
Luminous flux efficiency100 lm/w
Luminous energy35714 (lm)
Luminous energy efficiency144 (lm/w)
CCT6500K
CRI92
service life50000h (≥80%)
AC power270 W
DC voltage28 V
Direct current8.9 A
Dimming controlCustomizable
Light output directionDown ± 30
Intelligent switchSupported
Opening time30-60 seconds
Restart time90-180 seconds (restart automatic protection)
Total weight3.7kg (lamp head+microwave solid-state source+power supply+connector)
Outer packaging sizeL*W*H: 510*240*110mm

Typical spectra (customizable)        

LEP Spectrum        
Optical output distribution characteristicsLEP light source Optical output distribution characteristics



2.2 Environmental requirements for LEP light sources

A) Work Environment

Temperature -25℃ to +45℃, humidity 5%-95%.

B) Storage environment temperature

Temperature -40℃ to +80℃, humidity 5%-95%.


2.3. Heat dissipation requirements of LEP light sources

A) Power supply cooling

If the LEP power supply is external, the power supply shell itself can meet the heat dissipation requirements. If the power supply is built-in, the heat dissipation must meet the requirement that the temperature rise is less than 35°C under a 25W heat source.

B) Power amplifier heat dissipation

The power amplifier (microwave solid-state source) must meet the requirement that the temperature rise is less than 35°C under an 80W heat source.

C) System cooling

When the ambient temperature is 30°C, the shell temperature of the entire LEP system must be kept below 70°C to meet safety regulations.


III. Components and dimensions of LEP light source

3.1 LEP lamp head size (IP54)

Plasma light source (LEP) lamp holder dimensions

3.2. Size of microwave solid-state source (IP65)

Dimensional drawing of microwave solid-state source amplifier for LEP light source

3.3. Driver power size (IP67)

A) Appearance size

28V power supply size for plasma light source

B) Power supply parameters

input voltage176 - 264 Vac
Maximum input current2.5 A
output voltage28 Vdc
    Input communication frequency    47 - 63 Hz
Maximum output power350 W
Output current0-12.5 A
efficiency93%
power factor>0.97 (230Vac input, full load)
Protection function    Input undervoltage, output short circuit, overvoltage, overcurrent, and over temperature protection    
Safety specification certificationCCC、CE、ENEC

IP rating

IP67
Size (LxWxH)224.5*96.9*41.8mm


3.4 Line configuration and overall dimension diagram

Plasma Light Source (LEP) System Configuration Diagram

4、 Model Naming Rules and Selection Guidelines

LEP product model naming rules and purchasing guide

remarks: 

1. Color temperature is a range value:

35 (3500K-4500K), 50 (5000K-5500K), 65 (6000K-6500K);


2. Explicit refers to the lowest range value

72 represents the lowest Ra72, 80 represents the lowest Ra80, 92 represents the lowest Ra92, 95 represents the lowest Ra95;


3. Customers can choose or customize light sources with different spectra based on their actual application needs for the same model of LEP light source. We welcome further communication with you, such as:

1) There will be many different spectral options (1-99) for LEP light sources of the same model. We will recommend spectral types that are more suitable for user scenarios based on customer needs;

2) Requirements for the proportion of various light colors such as red, green, blue, etc;

3) Specific color temperature and color rendering index range values;


4. Due to the continuous updating and development of technology, if there is any change in the above technical data, please refer to the quotation.