Teera-Mongkol Industry Public Company Limited, together with its subsidiaries, manufactures ballasts and lamps in Thailand. The company offers fluorescent lamps for automotive, ship, and three-wheeled cart products. It also manufactures sodium and metal halide lamps. In addition, the company offers transformers for halogen lamps. It sells its products in 35 countries including Singapore and Taiwan. Teera-Mongkol Industry Public Company Limited was incorporated in 2000 and is based in Bangkok, Thailand.