Tech Lab Bangladesh is a biggest electrical and electronics engineering online class room. Where we will learn about electrical and electronics related practical and theoretical topics. We also provide video lecture about industrial controlling and automation system. We also learn Programmable Logic Controller (PLC), Variable Frequency Drive (VFD), and also industrial another device which is under industrial automation system. We are also provide job preparation series lecture for Assistant engineer and sub-assistant engineer post on Electrical and Electrical engineering. #Join with us . www.youtube.com/TechLabBangladesh