What are the L-class Transformers? Please elaborate!

L (leader) level: Optimus Prime (there are many versions, the best is the Jukoukou+impact gun version of movie 2, and the Tianqing suit version and the flying wing version are also very good. Note that the movie Optimus Prime also has a U rating, which I personally think is super bad), Sentinel Prime, Bumblebee, Tin, Skyfire, Megatron and Starscream. In fact, the MP (Master) level of G 1 animation is the best among Transformers, and MP 10 Optimus Prime 2.0 has a good cost performance. It seems that the US version is only about 800 RMB, the Japanese version 1300 RMB, and there are other steel ropes, such as Rodimus Prime, Megatron and Starscream. The modeling highly restored the images in G 1 animation. Old people suggest entering L or MP level, and children can buy U and or S level. The deformation of U and S levels is relatively simple, but the photoelectric sound effect is better.