JBL SOLAR TROPIC T8
18 Watts - length 60 cm
All JBL tubes in the Solar (T8) and Solar Ultra ranges have a life cycle of 10000 or 20000 operating hours. This corresponds to an average aquarium use of approximately 2 or 4 years. In the interests of the plants in fresh water and lower animals in salt water, we do, however, recommend replacing them after one or two years, as the luminosity starts to weaken after this time and the spectrum shifts. A late replacement would give plants and animals unnecessary adaptation problems. So as not to forget the replacement date for the tubes, JBL offers a practical aid, the "tube age check sticker". When you buy the tubes, the seller sticks the sticker with their replacement date in to the appropriate area. You remove the sticker and stick it somewhere near the relevant tube. You will never forget to replace them again. The stickers are printed UV-resistant, meaning the low UV rays that are emitted by all fluorescent tubes do not make them fade.
JBL Solar Tropic 18W Solar Fluorescent Tubes T8 ZXKCOMCRH