... design ok 4)different size,factory price high quality red single seven-segment led display Specification:Display Height (inch) ... ,5.0 inch,8.0 inch. 2)Color:red,yellow,green,white,rgb 3)Forward current: 10mA/segment ... ;Maximum reverse current:100mA 4)wavelength: red:650-700nm;yellow:585-600nm;blue:460-475nm;green: ... to do anti-static well. high quality red single seven-segment led display