Get a quote：

Whats/App: +86 181 0160 0864

Web: gellowen.co.uk

The Light Decay Test Chamber is a high-precision indoor exposure system specifically engineered for the performance degradation analysis of solar modules and cells. By utilizing high-intensity xenon lamps as a simulated solar source, the chamber replicates prolonged sunlight exposure to evaluate light-induced degradation (LID), perform hot-spot endurance tests, and facilitate pre-conditioning processes. With a light source that meets or exceeds Class BBB standards for spectral match, spatial uniformity, and temporal stability, this system allows you to achieve laboratory-grade accuracy in assessing the long-term efficiency of photovoltaic products.

Applications

The Light Decay Test Chamber is designed as an indoor exposure system, primarily used for standard module and cell degradation testing, module hot spot testing, and module pre-treatment. Spectral matching, irradiance uniformity, and irradiance stability meet at least BBB-grade standards.

This system comprises a light source system, temperature control system, module support structure, light source control system, and irradiance monitoring system. Utilizing xenon lamps as the light source, the irradiance across the exposure surface can be steplessly adjusted between 400 and 1200 W/m².

Standards

IEC 61215: Terrestrial photovoltaic (PV) modules—Design qualification and type approval (Specifically the Light-Induced Degradation and Hot-spot tests).

IEC 60904-9: Photovoltaic devices—Part 9: Classification of solar simulator characteristics (Meeting BBB or higher standards).

GB/T 9535: Ground-based silicon solar photovoltaic modules—Design qualification and type approval.

IEC 61646: Thin-film terrestrial photovoltaic (PV) modules—Design qualification and type approval (Stabilization phases).

Features

1. Utilizes a xenon lamp as the light source, providing an irradiation area of 1m x 2m, with over-temperature power-off protection.

2. Records irradiance, chamber temperature, and provides both instantaneous irradiance and cumulative irradiation data.

3. Chamber employs air cooling, with internal temperature controllable within 20°C to 50°C.

Parameters

Category	Item	Specifications
1. Xenon Lamp Parameters	Dimensions	200*40mm
	Power	1800W
	Operating Voltage	180VAC
	Lamp Life	700h (with cumulative timing function for lamp tube)
2. Chamber Structure	Construction	Welded integral structure
	Outer Wall Material	Galvanized steel sheet (spray-painted)
	Inner Wall Material	SUS304 stainless steel sheet
	Insulation Material	Glass fiber or polyurethane foam material
	Accessories	Equipped with standard viewport: 1 multi-layer glass window (with work light)
3. Radiometer	Spectral Range	300 ~ 3000nm
	Irradiance Range	0 ~ 2000W/m²
	Annual Stability	2%
	Azimuth Response Error	5%
	Non-linearity	2%
	Temperature Error	2% (-10°C ~ 40°C)
4. Temperature	Sensor Type	PT100
	Measurement Range	-200 ~ 500°C
	Test Accuracy	±1°C
	Resolution	0.1°C
	Probe Diameter	Φ5mm
	Installation Method	Fixed with movable screws
	Probe Length	5cm
	Resistance Change	0.3851Ω/°C
	Lead Connection Method	Three-wire type
	Sleeve Material	Stainless steel 304