LED 색상s = Red Forward Voltage = 2 V Viewing Angle = 55 ° Dominant Wavelength = 650 nm VCC 4301F ; 4303F 시리즈 T1 LEDs. The VCC 4301F ; 4303F 시리즈 are high efficiency T1 (3mm) through-hole LEDs providing a high intensity light output and a wide viewing angle. The 4301F series are bipolar bicolour types and the 4303F series are single colour.