Lights look best when the room is dark. If you've got big windows with sunshine pouring in, its going to wash out the lights completely. Room needs to be dim for the lights to look their best.
You can mix and match lights which can save lots of money. So for example, you can get 10 wired lights plus 4 wireless lights for the areas with no power outlets nearby. That will save you $70 versus getting them all wireless. We recommend packages of 12, 16 or 24. Those quantities will look great for your standard size event (100-300 guests). The bigger the party, the more lights you'll need.