... testig precision.INTRODUCTION:DLSK-FXJ7 is our latest model solar cell tester and sorter. With class AAA light source, double ... up and down,power controlled by a microcomputer,LCD screen display,Pulse xenon lamp flash pulse width can be adjusted, ... Ceramic reflector cavity;2.Use pure quartz filter;3.Graph display: I-V curve, Pm curve, I curve, V curve ... , 1 Xenon lamp in the machine and 1 Electric load.