Mainland Energy Conversion Ltd  is a Hong Kong registered manufacturer of Lead- and Lithium based Battery Chargers , Power Supplies, Power Inverters and Mobile Lights.

MEC has, ever since 1989, been developing and building power related products in the company owned factory in Dong Guan, China - the steady flow of products of value and distinctive appearance giving evidence of continuity and stability.

Product design, mold making, metal stamping, powder coating, printing, coil winding,board assembly and final burn-in of finished products are all done under one and the same roof.