I want a different answer!
-Laser and LED works on entirely different technology.
-Laser works on Stimulated Radiation principle, in laymen words : it is controlling a particular type of colour to emit from laser heart by selective transition (this job is done by laser core).
-On the other hand LED is an electronic component which emite light when electron meets a electron deficient site (hole) in a selective semiconductor piece. For contineuos emmision on light, process of electron meeting hole is goes on till we push the OFF switch.Same is in Laser case, but here what goes always is laser core emittind the light.