[Quality Material] This solar panels can withstand harsh weather conditions. Both the battery board and the air purifier No have batteries, so there is no need to worry about the high temperature battery explosion. [Cool & Clean Solar Cool Air purifier] solar Cool Air purifier with 20W high-efficiency solar panels and exhaust fan. This solar powered Cool Air purifier promotes air circulation, reduces indoor temperature, and removes dust to keep your indoor environment cooler and cleaner.Not work at night without the sun. [Wide Application]This solar Cool Air purifier can be applied on Car and is a perfect ventilation solution for the greenhouse, chicken coop, shed, , outside, outdoor travel, and more. Please do not contact the interface directly with water. Color: As Shown Material: plastic Panel size: 115 x 145mm Package Contents: 1X solar panels 1X Air purifier 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.