OPUDG is the trademark of Op Electrician in both Chinese and English. As for Op Lighting, it only does lighting. Guangdong Op Lighting Co., Ltd., you can see their 3C certification in the store where you buy lamps. Moreover, Op Electrician's 3C certification is Op Electrician Shanghai Co., Ltd. and its types are different. Lighting is the tenth category, and switching low voltage belongs to the ninth category. The Op DG Op Electrician you bought is genuine. Please feel free to use it!