At the earliest time, the energy conversion efficiency of power generation chip was very low, which has not been paid attention to for many years. In recent years, due to the energy crisis, the development of energy has become an urgent matter, and power generation chips have been paid attention to. Now, many national research institutions have invested in this field. Improving energy conversion efficiency and increasing service life are the primary goals. At present, the achievements are fruitful. The future development direction is to combine with solar energy, catch up with and surpass solar power module technology. The common application fields of power generation chips are as follows: thermal power generation in factories, geothermal power generation, thermal power generation in vehicle and ship exhaust pipes, and cathodic corrosion prevention in oil or gas pipelines. Material: ABS Color as shown Package Contents: 1 x Thermoelectric generator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.