| CE | Shenzhen HUAK Testing Technology Co., Ltd. | Aroma Diffuser : DH-JS21 , DH-JS22 | 2017-11-03 ~ | |
| RoHS | Shenzhen HUAK Testing Technology Co., Ltd. | Mosquito Killer : DH-MW03 , DH-MW04 | 2017-05-31 ~ | |
| CE | Shenzhen HUAK Testing Technology Co., Ltd. | Mosquito Killer : DH-MW03 , DH-MW04 | 2017-05-31 ~ | |
| FCC | Shenzhen HUAK Testing Technology Co., Ltd. | Mosquito Killer : DH-MW03 , DH-MW04 | 2017-05-31 ~ | |
| FCC | Shenzhen BST Technology Co., Ltd. | Mosquito Killer : DH-MW08 | 2018-03-02 ~ | |
| CCC | China General Certification Center | Electric Heater : DH-QN02 950W 220V~50Hz | 2017-11-16 ~ 2021-08-22 | |
| CCC | China General Certification Center | Electric Heater : DH-QN03 1800W 220V~50Hz | 2018-01-12 ~ 2023-01-11 | |
| TUV | TUV Rheinland | Electric Heater : DH-QN04 & DH-QN05 | 2018-09-28 ~ | |
| TUV | TUV Rheinland | Electric Heater : DH-QN04 & DH-QN05 | 2018-09-28 ~ | |
| RoHS | Shenzhen HUAK Testing Technology Co., Ltd. | Electric Heater : DH-QN03 | 2018-06-28 ~ | |
| RoHS | Shenzhen HUAK Testing Technology Co., Ltd. | Mosquito Killer : DH-MW06 | 2018-05-07 ~ | |
| RoHS | Dongguan BST Testing Co., Ltd. | Mosquito Killer : DH-MW05 | 2018-03-14 ~ | |
| RoHS | Dongguan BST Testing Co., Ltd. | Mosquito Killer : DH-MW08 | 2018-03-05 ~ | |
| FCC | Center Testing International Group Co., Ltd. | Electric Heater : DH-QN04 | 2018-08-31 ~ | |
| PSE | Center Testing International Group Co., Ltd. | Electric Heater : DH-QN04 | 2018-09-14 ~ | |
| PSE | Center Testing International Group Co., Ltd. | Electric Heater : DH-QN04 | 2018-08-31 ~ | |
| RoHS | Shenzhen HUAK Testing Technology Co., Ltd. | Electric Heater : DH-QN03 | 2018-06-28 ~ | |