LEDLM-80PL Life Testing Machine - acceleration led lumen maintenance test system

• Post Date:

  Mar 03,2016

• Expiry Date:

  Mar 03,2017

• Detailed Description:

  Cas No. :LEDLM-80PL Quantity: 30
  Payment Method: TT
  LEDLM-80PL Life Testing Machine - acceleration led lumen maintenance test system Introduction:
  
  Item
  Optical decay rate
  L50(h)
  L30(h)
  85°C
  8%
  8312.950414
  4277.62127
  70°C
  3%
  22756.57306
  11709.922
  
  The temperature Tj (the contact surface temperature between LED and circuit board, or ambient temperature providing the heat-sink is complete, but the junction temperature will be 15°C higher than ambient temperature in 350mA) will greatly affect the test result. We can predict the LED life under varies temperature according to formula 2. Suppose the time t1 is the LED life under T1 temperature, time t2 is the LED life under T2 temperature, then we can calculate the time t3 under T3 temperature:
  t3=t1*exp{(ln(t2/t1)/[1/(T2+15+273)-1/(T1+15+273)] * [1/(T3+15+273)-1/(T1+15+273)]}
  
  Then we can get the time to 50% and 30% lumen maintenance under different temperature:
  Item
  Tj=85°C (h)
  Tj =70°C (h)
  Tj =50°C(h)
  Tj =25°C(h)
  L50
  8312.950414
  22756.57306
  100144.3113
  833055.6622
  L30
  4277.62127
  11709.922
  51531.576
  428668.0953
  
  
  Optical decay trend can be showed as the following curve:
  
  Base on this model and combine the standards of IESNA LM-80-2008, LM-82, TM-21 and GB/T, Lisun develop the LISUN LED-80P SYSTEM. This system consist by high and low temperature chamber, AC power supply, DC power supply, multiplex temperature meter, photometer, 2m optical fiber, optical fiber and detector conversion device, light decay prediction software and 19 inch cabinet.
  Company Information
  Lisun Electronics Inc was found by Lisun Group in 2003. We have sales & service offices in Hong Kong and Shanghai. The Lisun Group were award CE certificate. As a CIE Supportive Member, all of the test instruments of Lisun Group are designed according to CIE Standards. Lisun Group's products have been sold to more than 50 countries and regions in Europe, America, Australis, Africa,South America and Asia. Its quality is well accepted by many companies such as GE, Phillps, Sharp, OSRAM, SONY and so on.
  
  Company Certificate:
  
  
  Lisun on HKTDC Hong Kong Lighting Fair:
  Our Services
  IES file test Service:
  we will test two lamps for you for free and supply you the following two kinds of test report.
  
  1. LM-79 IES or LDT files report for distribution curve intensity test by Goniophotometer System
  2. LM-79 report for lumen, CCT, CRI, Spectrum test by Integrating Sphere & Spectroradiometer System LPCE-2(LMS-9000)
  
  Installation and Training for our customers:

• CAS Registry Number:

  LEDLM-80PL

• Company:

  Lisun Electronics     [ China ]        

• Contact:

  Tracy

• Tel:

  02151083341

• Fax:

  02151083342

• Email:

  3224345358@qq.com