AA Aquarium AA24W-UVC Green Killing Machine Spare Bulb， 24W</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Keep your aquarium crystal clear.</li><li>Controls green water， eliminates cloudiness and bacteria without any chemicals.</li><li>Perfect for aquariums up to 120 Ga (450L).</li><li>No installation at all， simply clip to any waterfall filter.</li><li>Led signals need for a UV bulb replacement.</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/31zb7vxMuYL.jpg' noproxy></br>