LEP in Venue

I. Characteristics of the Classroom 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 proportion of the red, green and blue spectrum of the LEP-S-300-V25095-06 classroom lighting series plasma light source is almost the same as that of sunlight. The spectrum wavelength range covers 295nm-1800nm, which is the continuous spectrum closest to sunlight. The color temperature of the LEP light source is 5000K-5500K, the same as natural light. 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 hazards, no blue light hazards and other eye-friendly characteristics. Invisible light accounts for 30%, visible light accounts for 70%, and the red, green and blue proportions of the visible light part are 41/32/27, which is almost the same as sunlight. 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 Classroom lighting series LEP

Real energy saving must be based on health. As the latest generation of lighting technology, LEP-S-300-V25095-06 plasma light source has no flicker, glare, blue light hazards, good photopic and intermediate visual effects, and the ratio of red, green and blue spectrum is consistent with sunlight: comfortable, healthy, reliable and energy-saving. It is suitable for indoor lighting in classrooms, laboratories, libraries, exhibition halls and reading rooms.

The continuous spectrum closest to sunlight: comfortable, healthy, reliable, energy-saving

• Comfortable: consistent with the color of natural light, color rendering index reaches Ra95, no flicker, no glare, no blue light

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

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

• Energy saving: the light efficiency is 40% higher than HID; in the field of high lumen applications, the cost is lower than LED

Consistency: the ratio of red, green and blue spectrum is consistent with sunlight

• Discontinuous spectrum is more likely to cause harm to human eyes than blue light, mainly including visual fatigue and decreased vision.

• The proportion of the red, green and blue spectrum of LEP is almost the same as that of sunlight, which is a continuous full spectrum.

• Therefore, LEP light source is very friendly to human eye health.

Comfortability: LEP is in the same comfortable color temperature range as natural light

• People tend to feel tired at low color temperatures;

• People tend to feel excited at high color temperatures;

• Middle color temperatures make people feel comfortable and are the most commonly used light source color temperatures.

Advantages: Sun-like visual effect:

• The best photopic light effect is more conducive to the human eye to clearly distinguish the tiny details and true colors of objects;

• The best intermediate vision light source effect is better than other white light sources in the case of intermediate vision for object recognition;

• The best intermediate vision whole light effect is more effective in reducing the tension and fatigue of the human eye.

II. Technical parameters of the Classroom lighting series LEP light source

2.1. Parameters of the Classroom lighting series LEP light source

Product model	LEP-S-300-V25095-06
Product series	Classroom 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.