1.measure the luminous intensity distribution curve 2. for Chip LED, LED Module, LED Bulb, LED spotlight and CFL Lamp ... distribution curve, intensity data, spread angle and other parameters for Chip LED, LED Module, LED Bulb, LED spotlight and CFL Lamp ... °/30°/45°/90°, Vertical angle: 0.5°/2°/1.5°• Test accuracy of angle: ±0.2°. Test range of angle: LSG-1200Horizontal ...