This portable meter includes 2048 pixel CCD array spectrum analysis system, which is used to measure the colorimetric characteristics of illuminants in cost-sensitive application. It has some excellent distinguishing features such as easy operation, visual and dynamic display etc. Mostly be used in fluorescence lamp, energy saving lamp and LED lamp measurement. Measures: Dominant Wavelength, Peak Wavelength, Correlated Color Temperature, Color Rendering Index, Color Difference, Chromaticity Features: 1) Using CCD spectrometer technology to realize in high-speed measurement. 2) Having high spectral resolution and resolution sensitivity. 3) The test results are showed on a 128 * 64 graphics LCD. 4) Has saving the test result to own memory. Maximal: 17 teams data. 5) Can connect PC directly with usb cable, be controlled by the windows-based software. 6) Hardware design in concert with CIE 127 and CIE 84 recommendations. 7) Power Supply: Built-in rechargeable lithium battery, will be able to repeat charge. Specifications: 1) Spectral Range: 380nm 780nm 2) Spectral Resolution: ±0.2nm Reproducibility: ±0.5nm 3) Accuracy of Chromaticity Coordinate (Δx, Δy): ±0.003 4)Correlated Color Temperature (CCT): 1500K 25000K (±3%) .