These are extremely easy to install in less than ten minutes! Wireless and includes a remote that has four shut off timer settings that are 15, 30, 60 & 120 minutes, 50% or 100% light strength or the two buttons above can manually dim them to liking. The Led Pucks come in a pack of six which already have 3 AA batteries installed but removal of plastic is needed before turning on by turning counter clockwise to open and clockwise to lock. Each puck includes both a round double sided 3M adhesive sticks or 2 small screws. The amount of light these pucks cover and how much more light they give my kitchen is impressive. I highly recommend these for anywhere in the house or garage that extra lighting is needed!