Wattage:25-35w Voltage 100-120v or 220-240v Frequenccy:50-60hz Features: The externality of the front melting tip is spray with teflon which has much more function of heat and rub resistance. There are 3 kinds of melting tip, straight, curved and flat , and it suit for all types of hair extension systems, for keration silky straight hair, pre-bonded hair , hair bonding , nail hair , stick hair. Temperature constant and temperature control available.Constant one will be stable when the temperature reach220 , the temperature range of control one is from 100 to 200 , meet different melting points of different glue. Refined_iris(at)yeah(point)net