Mosquito mat is made by ESBIOTHRIN,by the scientific directions for producing chemicals.It can volatilize and drive off the mosquito effectovely. 1). Voltage:110v-220v 2). Electric mosquito heater main material: plastic 3). Electric mosquito mat main material: ESBIOTHRIN 2.6% 4). High effective, long duration about 10 hours 5). Heater with indicator light, inserting directly 6). Fragrance: lemon, rose... 7). Fresh fragrance-releasing with soft and fresh scent 8). A better result would be appear when using with TIHON mats vaporizer