First of all, the item is not a small solar garden light you may imagine. As it takes 3 D-cell and you can imagine the size of it, it is literally like a coffee mug. IMO, it is as small as it can get and still houses 3 D-cell.
I bought two units, one sensor seems to be a bit more sensitive than the other, and they are both very bright light. The unit itself is very light without 3 D-cell batteries
NOTE: Very unprofessinoal UPS delivery, they just left it 4 feet in front of my door...
Aug 2013 Update - both sensors died...the first one died 6 months and the second one died last month. These lights now keep turning themselve on and off constantly all day, and drained the batteries very quickly.