What are the differences of fluorescent light bulbs half or full spiral?

Question

I understand there are advantages and disadvantages but found nothing on the net.

Answer 1

I looked at them, it seams one is a full spiral, the other is only about half of that, but maybe the real thing is a wattage difference.

Answer 2

A curly bulb puts out a dense amount of light with overlapping light bands where a bulb that is not curly tends to have more distinct shadow because the light is not coming from overlapping sources.

Each puts out about the same lumens per watt.

Answer 3

yes, it is their wattage difference. i know that spiral designs are made so that light emitted by the bulb can reach more diameter or distance. that is what i know but i think there are no disadvantages. maybe the disadvantage only is that it uses more energy.