... water drops around and install the tank to machine body by direction; assemble tank cap, essential ... is reached, power light turns green and the machine starts working. Night light switch only controls ... , when the nightlight is turned on, the machine will give fluorescent effect decorating the room with ... , 250T, 320T 13 3.0 Acceptable Ultrasonic Wave Welding Machine LF-420 UW 5 1.0 Acceptable Air ...