Here's one of them:
This lamp is typical of Tamizh Nadu; it is called the "kutthu viLakku" ("kuthhu" signifies upright....like stake is driven -kutthi- into the ground and stands upright.) The ornament at the top is the hamsam...a stylized depiction of a swan (not that we seem to have had any endemic swans in India, but...)
A symbol of happiness, plenty, and wellness. A home with the lamps lit at sundown is a happy, welcoming home. A home where a death has occurred doesn't light lamps for some time; only one is lit and kept near the body and it is kept alight continously for 13 days after the death, when the soul is supposed to have joined those of the forefathers.
You can refer to this post of mine,
regarding the lamps I have at home.
The lamp I photographed above was about 6 feet tall!