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