LEP in Venue

I. Characteristics of the Sports stadium lighting series LEP light source

1.1. Characteristics of LEP spectrum

Continuous full-spectrum light source is the key factor in improving human eye comfort and reducing harm. Discontinuous spectrum light source is more likely to cause vision loss than blue light and is more harmful to the eyes.

The plasma light source of the stadium lighting series is the closest continuous spectrum to sunlight. The color temperature range of this LEP light source is 4500K-6500K, which is the same as natural light from 10 am to 12 noon. The illuminated objects are displayed as clearly as in the daytime sunlight. It has excellent color rendering, constant color temperature, extremely low light decay, no flicker, high comfort, energy saving and high efficiency, no glare, and is friendly to the human eye. The red, green and blue ratios of the visible light part are 41/32/27, and the proportion of each wavelength of the spectrum is very close to the spectrum of sunlight, see the table below:

Comparison between sunlight and several commonly used electric light sources

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 Sports stadium lighting series LEP

Stadium lighting design is a complex project. The core is to create an ideal visual environment so that athletes can accurately judge the game situation and the audience can clearly appreciate every wonderful moment of the game. It is necessary to consider illumination, brightness uniformity, color temperature and color rendering index, energy saving and environmental protection to avoid problems such as uneven or excessive lighting that affect the vision and safety of athletes and spectators.

As the latest generation of lighting technology, LEP-S-300-V25095-07 plasma light source has no flicker, no glare, extremely high stability, and good photopic and intermediate visual effects. The ratio of red, green and blue spectrum is consistent with sunlight: comfortable, healthy, reliable and energy-saving. It is suitable for indoor and outdoor lighting of tennis courts, badminton courts, table tennis courts, basketball courts, football fields, dance venues, etc.

LEP light source is the continuous spectrum closest to sunlight:

• Comfortable: color temperature is consistent with natural light, color rendering index reaches Ra95, no flicker, no glare

• High brightness: 0.4cm³ volume, luminous flux of more than 20,000 lumens

• Reliable: 50,000 hours of use, light efficiency remains above 80%, color temperature remains constant

• Energy saving: light efficiency is 40% higher than HID; in high lumen application fields, cost is lower than LED

• Uniform: point light source is more conducive to design, brightness uniformity is above 0.9

• Healthy: It is the light source closest to the sunlight spectrum (enhancing immunity, sterilization, promoting growth, beneficial to physical and mental health)

II. Technical parameters of the Sports stadium lighting series LEP light source

2.1. Parameters of the Sports stadium lighting series LEP light source

Product model	LEP-S-300-V25095-07
Product series	Sports stadium lighting series LEP Light Source
Spectral range	295 nm-1800 nm
Initial luminous flux	18000 lm
Luminous flux efficiency	72 lm/w
Luminous energy	25714 （lm）
Luminous energy efficiency	103 （lm/w）
CCT	5000K
CRI	95
service life	50000h (≥80%)
AC power	270 W
DC voltage	28 V
Direct current	8.9 A
Dimming control	Customizable
Light output direction	Down ± 30
Intelligent switch	Supported
Opening time	30-60 seconds
Restart time	90-180 seconds (restart automatic protection)
Total weight	3.7kg (lamp head+microwave solid-state source+power supply+connector)
Outer packaging size	L*W*H: 510*240*110mm
Typical spectra (customizable)
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)

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

3.3. Driver power size (IP67)

A) Appearance size

B) Power supply parameters

3.4 Line configuration and overall dimension diagram

4、 Model Naming Rules and Selection Guidelines

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.