Piezoelectric (PZT) is a material capable of converting mechanical energy into electrical energy. On the other hand, it can change electrical energy into mechanical energy. The purpose of this research isBy measuring the brightness of the LED here will use the scientific principles to help design. From this research it is found that the piezoelectric material to a parallel circuit by increasing the number of PZT from 1, a 23 4 5 6 and respectively. Using the lamp LE D 1 tubes. In the experiment, every time the result. Is when an increasing amount PZT material more, will make the brightness of the bulb. LED increased from 1.98 is 4.03, 5.74, 8.96 and 11.45, 13.82 respectively. Then the material will be PZT lamp will light up.