According to the requirement of IEC standards, the standard test temperature is 25℃. But high power lamps such as HID lamps and LED outdoor luminaires will produce a lot of heat during the test, thus the temperature inside the integrating sphere can not meet the requirement of IEC standards. LISUN designed the Constant Temperature Интегрирующая сфера (thermostatic sphere or temperature controlled integrating sphere) which keeps the temperature inside of the sphere stable at 25℃.

LISUN IS-*MT Constant Temperature Integrating Sphere is fully meet IES LM-82 Clause 4.4.

Спецификация:
• Diameter: IS-1.5MT (1.5m), IS-1.75MT (Φ1.75m), IS-2.0MT (Φ2.0m). PS: Other big size can be designed according to the customer’s requirements.
• Painting material of integrating spheres is according to CIE Pub.No.84 (1989)
• The internal BaSO4 coating: ρ (λ) ≥0.96 (450nm~800nm) and ρ (λ) ≥0.92 (380nm~450nm)
• Fine diffuse reflection: Reflectance ρ≈0.8 and accuracy of ρ (λ) <1.5%
- Встроенные все функциональные приспособления для тестирования ламп: E27, трубки T5/T8/T12 и база держателей для тестирования светодиодных и других светильников. Все тестируемые образцы могут быть установлены в сфере как вверх, так и вниз.
• Power cable, power terminal and auxiliary lamp position are built-in (Auxiliary lamp is optional).
• Power cable and socket are build-in. It is convenient to power on the lamp under test
- Два фотодетектор порты, один оптическое волокно port and one temperature sensor port are built-in
• Constant temperature range: 25℃-55℃ (The reference ambient temperature is 25°C): Temperature rise tolerance: ±1℃ and temperature drop tolerance: ±2℃
• Build-in cross laser can help to install the standard lamp and the lamp under test in the center of the integrating sphere (This item is not included for integrating spheres with a diameter less than or equal to 1 meter)

Применение:
The integrating sphere works with a Спектрорадиометр to do the photometric, colorimetric and electrical parameters measurement:
• IS-0.3M/IS-0.5M is for LEDs, LED modules, mini LED bulbs & other small lamps. The flux testing range is 0.001 to 1,999 lm.
• IS-1.0MT is for CFL or LED bulbs. The flux testing range is 0.1 to 199,990 lm.
• IS-1.5MT/IS-1.75MT is for CFL, LED bulb and tube, fluorescent lamp, CCFL. The flux testing range is 0.1 to 1,999,900 lm.
• IS-2.0MT is for HID lamps or high power lamps. The flux testing range is 0.1 to 1,999,900 lm