You have to click 5 times on power buttons if you want to turn on these units, although 3 fast taps will let you to navigate between temperatures. Before using the bigger device you have to open the magnetic atomizer lid and see the coils. Supply a small quantity of concentrate to an atomizer and place the mouthpiece on the top. Fine-tune the temperature by the technique mentioned above and then keep the Power button down to start the heater. Then give some time ( like several seconds) for coils to maintain the pre-set temperature before you are going to make the first hit. Let go the power button at the end of your draw to get the best concentrate vaping experience. The smaller vaporizer functions like standard e-liquid vaping device. To replenish the oil atomizer, take it out from the mod and take off the top of the atomizer.
Source: Yocan DeLux Innovative Step In Vaping Industry