18" T5HO Replacement Lamp 6400K

SunBlaster’s 18" T5HO Replacement Lamp 6400K is a high‑output 18‑inch fluorescent tube for re‑lamping SunBlaster T5HO strip‑light fixtures. It draws 17 watts and provides a cool‑white 6400 K spectrum suited to seed starting, cuttings, and vegetative growth. SunBlaster advises replacing T5HO lamps at about 10,000 hours to sustain optimal plant performance. The 18" length is the same used in SunBlaster’s 18" T5HO Combo fixtures, confirming the 17 W spec, and it features a T5 mini bi‑pin base. In SunBlaster Mini Greenhouse Kits, this light is paired with a standard 10×20 in propagation tray, indicating typical single‑tray coverage when positioned close and used with the NanoTech reflector. Ideal as a like‑for‑like tube for existing SunBlaster T5HO setups.