Disclosed is a pet clipper for clipping or trimming hair of pet animals, such as a dog or a cat, by providing adequate lighting via the same pet clipper during the hair clipping or trimming process. The lighting provides halo-illumination lighting effect such that a 360-degree light encircles a clipping or trimming surface of a pet animal during the hair clipping or trimming process. The use of halo-illumination allows a user to see the clipping or trimming surface of the pet animal more clearly and effectively, thus providing the user sufficient information as to whether they are performing a suitable job during the hair clipping or trimming process.
