one 36" dual strip with 30W 10000K and 30W 6500K, one 48" dual strip from corallife, not sure about the bulbs (they came with the ligth)but probably the same power as the 36" strip. and one 15W purple-ish light that came with my 10g. I could probably use bulbs a lot more power but I don't want my electricity bill go up like crazy and I don't think any of the plants I have in there require high power.