This period of time is called the restrike time. Restrike times for traditional probe-start MH lamps can take 15 minutes or longer, but restrike times for pulse-start MH lamps are generally much shorter (see Figure 4). According to manufacturers' literature, restrike times for pulse-start MH lamps can be more than twice as fast as for probe-start MH lamps.
Overview. Unix (officially UNIX) is a registered trademark of The Open Group that refers to a family of computer operating systems and tools conforming to The Open Group Base Specification, Issue 7 (also known as POSIX.1-2008 or IEEE Std 1003.1 - 2008).
pip is the preferred installer program. Starting with Python 2.7.9, it is included by default with the Python binary installers. a virtual environment is a semi-isolated Python environment that allows packages to be installed for use by a particular application, rather than being installed system wide. virtualenv is a third party tools for creating virtual environments, it is defaults to installing pip into all created virtual environments.