What fun these lights are! Simply pull the plastic tab protector, turn them on and they’re ready to go! The remote buttons are clearly marked and so easy to use. The lights appear to be well made, the brightness is better than expected and there’s multiple light and color patterns to chose from. Right now we’re using them in our hot tub and look forward to trying them in the pool once it’s opened. We ordered the 2 pack but my guess is the 4 pack would be better for a pool. It’s a plus that these are rechargeable so there’s no need to stock up on batteries. Looking forward to many colorful evenings on the patio this summer!