By Garuda.Hypnotizd 2009-03-02 11:25:39
The only steady way to get light clusters is Ru'Aun Gardens. Light weather is very rare and never lasts long in Qufim/Delkfutt's/Behemoth's.
Gardening can take like 3 weeks to get 1-3 clusters.
If you are breaking the clusters down to crystals for synthing you could try farming Cardians, Golems, Magic Pots or Tonberries which all drop light crystals.