What is a LED emergency driver
In layman's terms, an LED emergency driver is a converter. Its function is to transform our common power supply into LED suitable for use voltage and current. Through its conversion led to work properly light. LED driver function and the past we have used quartz lamp transformer, fluorescent lamps, energy-saving lamps, metal halide lamp ballast is no different. It is to make the light source products can be stable to work properly. So there are often called led ballasts, led transformers, etc., but the industry is generally called drive, one is to distinguish with other converters, the second is the working principle of the three is a difference. Three can show the professional.
Common Types of LED emergency drivers
LED emergency driver commonly used on the market according to the drive mode is divided into two kinds, constant current drive and constant voltage drive.
1. LED emergency constant current driver
LED emergency constant current driver is characterized by a constant output current, the output voltage varies within a range. So in the market often see the driver casing marked out (output: DC**V--**V ***mA +-5% ) This means that the output voltage in a range, the current is how much mA.
2.LED emergency constant voltage driver
LED emergency constant voltage driver is characterized by the output voltage is fixed, the current changes within the maximum value with the number of lamps connected. The casing will generally be marked (output:DC**V **A) refers to the output fixed voltage, the maximum output current is how much. led market is common output 5V, 12V, 24V, etc..
