These lights are a bit smaller than I expected but that is not a bad thing! They are extremely bright and their size makes them easy to install in a variety of places. Because of how bright they are I actually put them in three different places including one on my stairs. They can be installed with screws or sticky tape. One thing to consider Is they don’t always seem to come on. Sometimes I walk by and they light up, other times not. Also be aware each light requires THREE double A batteries so have on hand!  Overall, however, I recommend these lights.