Electronic chock design, assembly, and repair.
Inverter and UPS technology, design, installation, maintenance, and backup power systems.
Gas stove repair, safety procedures, gas appliance maintenance, and gas stove installation.
Stabilizer technology, design, assembly, and repair of voltage stabilizers.
Telephone systems, landline and mobile phone repair, telephone line installation, and troubleshooting.
Sewing machine repair and maintenance, understanding sewing machine components, and troubleshooting.
Repair and maintenance of emergency lighting systems, battery replacement, and emergency lighting installation.