Materials for Major Parts and Reasons for Choosing Those Materials:Solar Panels: High-efficiency, lightweight solar panels are used to capture solar energy efficiently, ensuring the device can operate continuously without the need for batteries.Ultrasonic Emitter: The ultrasonic emitter is made from safe, non-toxic materials and is designed to emit a frequency that repels mosquitoes but is harmless to humans.Housing: The housing for SolarSafe is made from durable, weather-resistant plastic, making it suitable for outdoor use and protecting the device's internal components.