you can find some good stuff on the internet, but need money. and that losts of design, which in the world, you can not easily pass them, MAN. you find that failure, no use for your future, no any improvement.
2 yrs passed, in this post, Lighting Job Analysis灯具行业 ,MAN how to beat it?? no any mentor to advice you, event your boss woul dgive you a hlepelp.