把 with its object to act as an adverbial adjunct, which modifies a verb predicate. This kind of sentence places emphasis on a certain person or thing and the result or influence that it produces. The subject of a 把 sentence must be the agent of the action. The basic form of the 把 sentence is:
Agent of the action (subject) + 把 +receiver (adverbial adjunct) + verb (predicate)

• 把 can be used when you want to deal with or to dispose of a particular object.

A verb in the 把 construction changes the form, situation or direction of the object. Verbs in 把 constructions are in complex forms. They are usually verbs of method of action plus other elements.

• 把 can be used when you want to specify that the result of an action affects a particular object, but not the action itself. This is because some resultative complements have ambiguous references and can refer either to the main verb of the sentence or to the object. For instance:

The resultative complement 完 (to complete) can refer either to the object 酒 orto the verb 喝, so the meaning of that sentence can be either “He has drunk up all the wine,” (and there is no wine left) or “He has finished drinking (the wine),” (but there is still plenty of wine left). If you use the 把 construction, the meaning is clearer:

He has drunk up all the wine.

More examples:
我把饭吃完了。 I have eaten up all the rice.
wǒ bǎ fàn chī wán le 

我把灯打开。 I turn on the light. 
wǒ bǎ dēng dǎ kāi 

Yes, “我打开灯“ also makes sense, but 把 sentence is a kind of emphatic pattern.
加油！你很不错了！

 “把” sentence， https://youtu.be/xr9fZfxEezg