These emergency exit signs usually equipped with recharged a 3.6V Ni-cd battery inside the hosing. It has up to 500 times backup powered. The battery is protected by a low voltage cut-off circuit. Also, the Emergency Escape Signs specialized to use the fire-resistant housing at the engineering level. Upon failure of the normal utility power, an internal transfer switch provides emergency time for at least 90 minutes. The charger initiates powered back the battery in 24 hours. The exit sign is suitable for wall or ceiling mounting. Plus, there is an indicator light and a test button on the unit so that you can periodically check that it is functioning properly.
Ni-Cd Battery Emergency Exit Sign Led Exit Sign with Emergency Lights,Emergency Exit Lights Led,Emergency Exit Led Lights Battery Backup Jiangmen City Pengjiang District Qihui Lighting Electrical Appliances Co., Ltd , https://www.qihuilights.com
Guangdong Deli Photoelectric Co., Ltd. mainly develops, produces and sells LED epitaxial wafers and chips. In 2013, its operating profit was -2.53 million yuan and net profit was -169 million yuan.
The announcement pointed out that in 2013, Deli Optoelectronics completed the procurement of 10 MOCVD machines and other production equipment, supporting facilities and accessories materials as planned, and completed the civil engineering, factory main system installation and supporting system commissioning, in 2013 12 On the 26th, the first epitaxial wafer was successfully lit and began to enter the commissioning production.
Guangdong Ganhua said that in the future, the company will base on the production of LED epitaxial wafers and chip production projects, and gradually build the LED industry chain to enhance the company's industry position. In 2014, the company's LED business business objectives are: to achieve mass production of LED epitaxial wafers and chip production lines, and to expand to the middle and lower reaches, to create a full LED industry chain; 
On February 28, Guangdong Ganhua released its 2013 annual report. In 2013, the company achieved operating income of 451 million yuan, down 3.82% year-on-year; realized net profit attributable to owners of the parent company of 35.878 million yuan, down 23.9% year-on-year; as of December 31, 2013, the company's total assets was 1.477 billion yuan. Net assets were 1.018 billion yuan.