Planet Light T5 24-Watt 4-Pack Fluorescent Grow Light Replacement Bulbs (2FT 24W 6500K) for Indoor Horticulture Gardening, Hydroponics, Aquaponics, Seedling, Cutting, Cloning, Germination, Fish Tank and Aquarium 4 packs of Planet Light 2 feet 24w high output HO T5 horticulture light bulbs. Full spectrum for seedlings, cuttings and cloning. 20000 hours average life per tube. 2000 Lumens, Cool/Blue 6500K CCT white light. Suitable for all sorts of indoor horticulture gardening. Energy saving. Cost and effective. Designed to deliver performance.