ModelOp-fill can be heat to 200 C in 3s, can be melting all kinds of Gutta percha.It support the vertical compaction of Gutta percha for the root canal filling. It is intended exclusively for use by trained dentiet only in clinic or laboratory. Safety caution: Heat: Press the button to heat the tip, the Led indicator light red.The tip can reach working temperature within 3 second. Charge:Put the obturation pen onto the charging base, the LED indicator light blue.The unit should be continuous charging more than 8 hours from low voltage to full charge. The temperature of tip is very high during the surgery , in order to prevent from being burned, please avoid it directly contact to the soft tissue. Specification Charging system Operating Voltage DC.3.6V Adaptor Input: AC 100V/220V 50-60HZ Power: 10w Charging time 4 hours Packing size: 165*125*38mm Packing list: Charging Base-----1 PC Obturation Pen-----1 PC Pen Tip -----2PCS