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 Sfera integratrice (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.

Specifica:
• 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)
• Riflessione diffusa fine: Riflettanza ρ≈0,8 e precisione di ρ (λ) <1,5%
• Build-in all functional lamp testing jigs: E27, T5/T8/T12 tubes and the testing holder base for LED and other luminaires. All samples under test can be installed both up and down directions in the sphere.
• 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
• Due rilevatore fotografico porti, uno fibra ottica sono integrate una porta e una porta per sensore di temperatura
• Constant temperature range: 25℃-55℃ (The reference ambient temperature is 25°C): Temperature rise tolerance: ±1℃ and temperature drop tolerance: ±2℃
• Il laser a croce integrato facilita l'installazione della lampada standard e della lampada in prova al centro della sfera integratrice (questo elemento non è incluso per le sfere integratrici con diametro inferiore o uguale a 1 metro).

Applicazione:
La sfera integratrice funziona con una Spettroradiometro 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