T2 spiral compact fluorescent across 7W, 9W, 13W and 23W — equivalent to 40W, 60W and 100W incandescent — at 540 to 1,600 lumens, in 2700K soft white and 4100K cool white, supplied as singles, two-packs and four-packs.
T2 is the narrow-tube spiral, which matters because envelope diameter decides whether the lamp clears a shade or a harp. Wattage equivalence, lumen output and colour temperature are published per SKU alongside it.
CFL is a replacement line now rather than a growth one, but it reorders steadily where fixtures were never converted. Buyers stepping across will find the equivalent output in LED A19.