These Starlightz stars are paper stars with 5 prongs for indoor use, which can be folded completely flat. The diameter is 45 cm, the thickness is 17 cm.
These Starlightz Paper Stars are powered by an LED bulb of about 4 watt to save electricity. For the price of 1 kWh (about 0.3 CHF) you can make a star shine for about 250 hours.