Low heat. Good thermal stability. Frequency and static capacitance strong consistency. Resonant impedance is low. The typical size of life. It could be extensively used in a wide range of ultrasonic cleansing equipment. High performance: mechanical Q value, excessive vibration efficiency. Powe: 35W Resonant frequency(KHz): forty ± 1 Static capacitance(pF): 8500 ± 10% Resonance impedance: lower than equivalent 20 Ohm Insulation resistance(2500V DC): greater than equivalent 100M Ohm Material:ceramics colour:White + Gray Package Contents: 1 x Piezoelectric Ceramic Sheet Only the above package content, different products usually are not included. Note: Light taking pictures and assorted exhibits may cause the colour of the article in the picture a chunk diverse from the genuine thing. The size allowed error is +/- 1-3cm.