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LP1 UC20E?1 is a powerful 20W strong directional speaker designed to provide high-quality voice and music playback function in indoor and outdoor applications. The advanced design not only suits the environment of modern style, but also suits the environment of traditional style. This speaker is suitable for voice alarm system. The basic function absolute perfect sound quality high quality drive unit combined with advanced filtering function can produce extremely natural sound reproduction effect and excellent bass response. The voice alarm loudspeaker is specially designed to be used in buildings with many strict requirements on the performance of the voice broadcast system. LP1 UC20E?1 is designed to be used in the voice alarm system and is certified by EN 54-24 to meet BS 5839?8 and EN 60849 standards. This strongly directional speaker has been wired in advance and can be used in conjunction with an externally mounted optional circuit/speaker monitor board. The speaker has built-in protection. In the event of a fire, this protection ensures that the damage to the loudspeaker does not result in the failure of the circuit connected to it. In this way, the integrity of the system is maintained, ensuring that speakers in other areas can still communicate with people in a timely manner. The loudspeaker is equipped with a ceramic junction box, a temperature fuse and a heat-resistant high-temperature conductor. The strong pointing speaker housing is made of white high strength flame retardant ABS material, which meets UL 94 V 0 standard. All Bosch loudspeakers are certified to meet IEC 268-5 power amplifier (PHC) standards and can operate continuously for 100 hours at rated power. Bosch has also conducted simulated acoustic feedback exposure tests to ensure they can withstand twice the rated power in a short period of time. This ensures higher reliability in extreme conditions, improves customer satisfaction, extends service life, and significantly reduces the chance of failure or performance degradation. Safety, like all Bosch products, is carefully designed to ensure compliance with stringent safety standards. All ABS components meet UL 94 V 0 standard for flame retardant performance. This strong pointing speaker meets the safety and installation requirements of EN 60065 standard. Waterproof and dustproof meet IEC 60529, and the IP 65 standard urgently meet EN 54-24/BS 5839-8/EN 60849 regional certification European CE DOP CPD Poland CNBOP