4G technologies are designed to provide IP-based voice, data and multimedia streaming at speeds of at least 100 Mbit per second and up to as fast as 1 GBit per second. 4G LTE is one of several competing 4G standards along with Ultra Mobile Broadband (UMB) and WiMax (IEEE 802.16).
An electrical ballast is a device placed in line with the load to limit the amount of current in an electrical circuit. It may be a fixed or variable resistor.
DALI dimming ballasts and drivers are connected together by a 2-wire low voltage bus that is suitable for. Class 1 or Class 2 wiring installations. This application note explains how both Class 1 and 2 wiring are. made and how they both meet National Electric Code (NEC) regulations.