This product is flame retardant material, the use of the grading constant current charging, fault detection, overcharge, over-discharge battery protection device; discharge time is long, energy-saving, easy maintenance, safe and durable. The product is designed in strict accordance with the GB17945-2000 standard safe evacuation signs can be widely used in all kinds of places. Use and maintenance, installation or hanging in a safe exit in a prominent position, power (220V, 50Hz), the light-emitting chip and green main power indicator light should be lit. 2, press the right side of the "test" button, the light-emitting chip flash, still luminous. 3, when entering a state of emergency, if the need to terminate the display, press the "reset" button on the right to stop working. 4, the right side of the red indicator light is charging. Marker lamp not put into use after three months should be connected to the grid full charge and full discharge once fully charged storage, in order to avoid battery failure. 6, such as the case of charging, the red indicator light is not lit, and emergency shining piece does not shine, you should check the battery (3 × 1.2V rechargeable battery pack) whether failure. (Note: installation, disassembly, and open the flag the lights back cover maintenance, replacement battery pack operation should repair professionals completed) Main parameters: Power supply voltage: 220V ± 10% 50Hz Power: 2W conversion time: <5 seconds Emergency time:> two holes of the 90-minute recharge time: <24 hours of standby power supply: 3 x 1.2V 300mAh use temperature: -10 ℃ ~ +50 ℃ brightness: 15CD/m2 Dimensions mm: 348 (length) x 45 (width) × 35 (thickness) distance between: 252mm best fire extinguisher maintenance company - Shenzhen Yuantong Fire valve [Shenzhen, fire extinguishers, fire extinguisher maintenance, Shenzhen, fire equipment, fire signs, fire engineering in Shenzhen, Shenzhen traffic equipment, fire safety, exit lights, Shenzhen hydrant http: / / www.szytxffm.net]