Will changing hps to led cause problems for my growth?

I think it will disturb the plant for a while. Such dramatic change of spectrum won’t be unnoticed by the plant. There are pros and cons of it. Pros: leds will give much better spectrum with less heat. Cons: the plant should take time to adapt to new light. It will probably cost you a few days of flowering. Also, light emitted by relatively low powered LEDs doesn’t penetrate the dense foliage as well as HID light. Lower branches will receive less PAR, while the canopy can even get light stress. Think well before you make this change. Probably I exaggerate a bit, take my opinion as a BroScience point of view.