... 3.Classification NO.:128,256 advanced LED color testing machinespecification:*power:single-phase 220V,50/60Hz(power ... humidity:below 65%Technical parameter: No. testing parameteraccurancyremark1 brightness 90%repeating testing result2 main wavelength0.3nm 3peak wavelength0.3nm ... 3528, 5050, the single, dual, tri crystal testing and classification*relying on advanced convept design from Japan,equipped ...