Enlighten Brick is a clone brand similar to Oxford Toys, sharing many designs of sets. Enlighten started producing clone bricks on the LEGO system scale in 1963 and now produce under 5 brand names: Enlighten, Enlighten Brick, Century Military, Barbara, and Shifty. With the unification of Hong Kong with the People's Republic of China, they now face stiff competition from the following PRC clone companies: Sluban (Shanghai), Little White Drangon (Chengdu, near Chunking), Coco Blocko (Nanjing), Li-gao, Kazi, and Wit and Digo.
- Military Theme: includes Navy, Army, Airforce, Special Forces
- Town: includes Fire, Police, Rescue, Resort, Racing
- Castle: includes Peasants, Pirates
- More than 54,000 copies of LEGO products were destroyed - article from 2004 by LEGO regarding the illegal activities of Enlighten Bricks.