GOWE Portable LED Film Viewer for Radiographic Testing The power rating: 50 W Product features:/ The brightness of 83000 CD /square meter (260600 Lux), evenness 0.95;/ Portable small, the weight of 2.5 Kg./ Low voltage electronic way stepless adjustment of the light;/ USES the import original LED chips;/ More than 50000 hours of time;/ Chassis aluminum alloy integration, the side cover the engineering plastic, strong earthquake;/ 2 years warranty, use more at ease/ LED lamp is view pieces in JB/T4730-2005 "of the pressure equipment nondestructive testing" and GB/T 19802-2005 "industrial radiography published film view pieces light" the latest standard of developed new products. Inherited FV-2008 fine tradition, the light source adopts high power LED light source surface, so that in the high brightness, still have extremely high uniformity, and the working life of the theory in 50000 hours./ Portable durable appearance design, make its extremely suitable for the occasion of liquidity in the wild. But clearly observed in 4.0 D black for the film on the small defects, meet the needs of daily use. In view of the LED lights and design of the constant current drive mode, more degree ensure the normal work of LED, so as to achieve the purpose of life extension./ Low voltage electronic pulse width modulation of the way light stepless adjustment, further ensuring the safety of the user. Have feet mode and manual mode, meet different work habits./ Observe screen brightness all point distribution table (unit CD/m2) :/ 70300 72000 71400 70400/ 72000 73000 72080 72080/ 71500 72300 71600 71000/ view pieces lamp technical specifications:/ Observed the biggest black for value: 4.1 D/ Maximum brightness: frequency 47770 CD/m2 (150000 Lux)/ The input voltage range: 85 ~ 264 VAC 47 to 63 Hz/ Uniformity coefficient: g frequency 0.95/ Scattering coefficient 0.95 frequency/