นำคืออะไร ?
LED?
.LED stands light-emitting diode known as Thai is a light-emitting diode. Electronic device types that allow current flowing through and lightsome light out. By qualifying change energy direct light.The light emitting out. Depending on the chemical composition of semiconducting materials used less energy when compared to other types of lamp and long lasting. , to 100000 hours per tube LED so popular in the application of producing fire signs letters run signs traffic lights and advertising signs, sign relations
การแปล กรุณารอสักครู่..
