Model No.:JF-II Product Origin:China Brand Name: Price Terms: Payment Terms: Certification: Description:This is a special instrument for testing Luminous intensity(IV) and Space Angle of LED, which has complete functions and the characteristics are credible and it's very easy to use. It can test both sides Luminous intensity and Space Angle of LED; It brings the operated constant current(IF) automatically. It can test both positive voltage(VF) and reversed leaking current(IR) of LED, and range for luminous flux.