The dimension of this ceiling lamp installed is actually 14" from the ceiling down to the bottom nut. The shade is 16" x 10". The Shade is not held in place well and will rock with the slight brush to the shade. The base and the shade are solid construction and are built well. The mounting hardware included is not complete. You should buy a longer steel nipples to replace the center nipple in the lamp in order to mount the lamp securely. It is a relatively heavy lamp and, in my opinion, the two small screws that is included would not be strong enough to hold securely. A standard electrical box should reinforced to support this lamp. I had to screw in another screw though the electrical box into a ceiling joint to steady it. Otherwise, the lamp's weight would have caused the box to sag out of the ceiling. The lamp would not be tight to the ceiling. Lamp wiring is zip cord. Small mount screw thread are some sort of non-standard metric. The lamps looks good and has an algae greenish yellow in the field when lit. The dragonflies are red. The lamp has two standard incandescent light bulb receptacles and plenty of space to dissipate light bulbs' heat. and should be enough capacity for anyone's needs. I'm using two 15 watt fluorescent bulbs.