Product details:

Brand: bogen. Finely perforated grille over the entire front of speakerfully enclosed, industrial grade steel constructionenclosed back can8in main cone with secondary high-frequency conelow-impedance: 8-ohm speaker, 15w max. Powerseismic attachment pointscomplies with requirements of ul-2043support rail crossbar includedavailable in off-white and bright white u versions grille finish.