Sunlight Simulation Source

I. Characteristics of the sunlight simulation source

1.1. Characteristics of spectrum

The sunlight simulation source emits continuous full-spectrum white light identical to sunlight, illuminating objects as clearly as under natural daylight. It features excellent color rendering, stable color temperature, minimal light decay, no flicker, high brightness, strong fog penetration, and high energy efficiency.

With a color temperature of 5000K-5500K, visible light accounts for 70% of the spectrum, while invisible light makes up 30%. The wavelength proportions closely match those of natural sunlight, as shown in the table below:

Comparison of Performance: Sunlight Simulation Source vs. Natural Sunlight vs. Common High-CRI Electric Light Sources

1.2. Application advantages of Sunlight simulation source

The sunlight simulation source achieves an irradiance power density of AM1.5 or higher (≥1000W/m²), with an intensity of 1.0 Sun or more. Its spectral matching with sunlight, irradiance stability, and uniformity all meet or exceed the AAA level of international solar simulator standards.

Below is the center illuminance measured at different distances (with reflector and Fresnel lens): 114,100 Lux @ 15cm, 28,000 Lux @ 120cm (equivalent to direct summer noon sunlight).

1.3. Physical characteristics of sunlight simulation source

The sunlight simulation source 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 The sunlight simulation source (including amplifier, power supply and lamp holder) can keep the temperature as low as 58℃ (room temperature @ 32℃) during long-term operation.

Technical parameters such as spectrum, color temperature, and CRI can be customized.

1.4. Application Areas 

Ideal for sunlight simulation in polar night regions, medical physiotherapy, indoor sunbathing, enclosed spaces, underground tunnels and mines, and large indoor venues. Also suitable for high-end indoor lighting in classrooms, libraries, exhibition halls, laboratories, as well as painting, photography, and carving studios.

II. Technical parameters of the sunlight simulation source

2.1. Parameters

Product model	LEP-S-300-5092-L1
Product series	sunlight simulation source
Spectral range	280 nm-2500 nm
Visible and invisible light proportion	Visible 70%, IR 29%, UV 1%
Visible light proportion	Red light 38%, Green light 32%, Blue 30%
Visible light proportion in natural sunlight	Red light 40%, Green light 31%, Blue 29%
Initial luminous flux	16000 lm
CCT	5000-5500K (Zero color temperature shift)
CRI	≥ 92
service life	50000h (≥80%)
AC power	270 W
DC voltage	28 V
Direct current	8.9 A
Dimming control	Customizable
Light output direction	Down Radial ±30 / Axial ±10
Intelligent switch	Supported
Opening time	30-60 seconds
Restart time	60-120 seconds (restart automatic protection)
Total weight	3.7kg (lamp head+microwave solid-state source+power supply+connector)
Outer packaging size	L*W*H: 532*302*190mm
Typical spectra (customizable)
Optical output distribution characteristics

2.2 Environmental requirements

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

A) Power supply cooling

If the 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 Sunlight simulation source system must be kept below 70°C to meet safety regulations.

III. Components and dimensions

3.1 Line configuration

3.2 Head size

3.3. Size of microwave solid-state source

3.4. Driver power size

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 Sunlight simulation source. We welcome further communication with you, such as:

1) There will be many different spectral options (1-99) for Sunlight simulation source 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.