High light levels are appreciated by just about every species of Drosera, but this process needs to be done gradually, in stages, similar to you getting a deep tan. Too much too soon and the chloroplasts die and so goes the leaf (or plant if the center meristem dies). As mentioned previously the "Queensland Sisters" are the most ammenable to lower light culture, and such conditions will produce monsterously large specimens. With Drosera adelae I guess it all depends on which coloration you prefer as to how you'll provide light for them. Once the plant is happy it will provide many offsets that you can experiment with. LOL, and I remember when this plant was a rarity in the U.S. and took months to import from Australia. Glad to see times have changed, now if we could only have a similar success story for Drosera chrysolepsis, hey?