... , red ratio, blue ratio, green ratio, spectrum radiotion power, peak wavelength, luminous flux, luminous flux efficiency and photometry ... Accuracy: ±0.512. Working power supply (1)Power supply voltageAC 220V±5%designed according to the users requirements for export products ... 2)Best temperature in normal test 25±5 (3)Correlated humidityless than 80%no dew, suggest to install a dehumidifier14. Size and ...