Night-Saver Dimming Control for HID Lighting Systems from MJB Technologies

The world's first microchip controlled, independently operated HID dual-level switching control for Roadway and area lighting luminaries.

If saving energy, or energy costs, or reducing sky-glow is your goal, then Night-Saver is the answer. Energy costs amount to 70% of the total owning and operating costs of an outdoor lighting system.

By operating 7 hours per night at 42% power reduction, Night-Saver can
save you 26% of your lighting power costs.

Roadway traffic has its peaks during the rush hours, but it has its low levels between 11:00 pm and 6:00 am. This is the opportune time for dimming, for saving energy and for saving the night sky.

A single 250 watt high pressure sodium luminaire can save over 384 kilowatthours of power in one year. A 150 watt luminaire can save 243 kilowatt-hours.

Multiply these savings by the number of luminaries that you can dim and the power savings are substantial.

If there is a concern that changing roadway lighting levels is possible or even allowed and there are liability and public safety issues, we refer to the Illuminating Engineering Society of North America (IESNA). The IESNA allows for three levels of light depending on the degree of vehicle pedestrian conflict: High, Medium, and Low

If your lighting is designed to the High level you can dim the lighting by up to 50%. If your lighting is designed to the Medium level you can dim up to 33%.

Roadway lighting is costly to purchase, install, maintain and to operate. Most roadway authorities are mandated to reduce their operating costs.

Energy costs amount to over 70% of the total owning and operating costs of a lighting system.

Saving energy is an important element in reducing roadway lighting costs.

Night-Saver can help by dimming the lighting to 50% and save 42% of your lighting power costs.

Night-Saver is installed into each roadway luminaire that is to be dimmed. There is no wiring between luminaries or to a central control. The Night-Saver timer control switches the HID ballast from its full output to a predetermined reduced setting. It requires no servicing and it will operate for over 20 years. Proven Hi-Low dimming of HID lamps through capacitance reduction has been a practical way to save energy with indoor lighting for decades. Now, MJB Technologies and Allanson International have taken this technology outdoors where the long distances between poles make low voltage control impractical.

There are over 2.5 million roadway lighting fixtures in Canada. If we dim just half of them we could save over 220 million-kilowatt hours per year.

This would save 66 thousand metric tones of co2 emissions each year.

The payback in energy is obvious. The payback in saving the environment is incalculable. The reduction in corrosion, saving in health costs due to cleaner air and the benefits from a cleaner sky are also immense.

Illuminated parking areas are great applications for Night-Saver as there is a significant change in activity between the early evening and late night hours. No need to retrench for control wiring with Night-Saver. It is designed to be compact enough to fit into almost every outdoor luminaire.

Save energy, Reduce sky-glow, Minimize light trespass, Reduce offending glare

Sky-Glow
Sky-Glow is created when stray light illuminates the night sky. The International Dark Sky Association promotes less light intrusion into our nighttime sky. In addition to the loss of our ability to see the stars at night, certain forms of plant and animal life are altered by not having complete light-dark cycles each day.

Light Trespass
Light trespass occurs when stray light from a neighbour's porch light or a roadway luminaire projects where it shouldn't, on private property and into bedroom windows. Living next to a shopping mall or a sports field can be an example of this.

Offending Glare
Offending glare occurs when the beam of light from a fixture is aimed into the eyes of someone who isn't performing the task for which the lighting was originally designed.

Night-Saver Features and Benefits

Individually installed and independently operated in each luminaire.
No control wiring between luminaries and a central control.
Night-Saver wor?s independently of luminaires power supply.
Available for up to 400 watts HPS and metal halide CWA and CWI.
New capacitor adds fifteen years to the life of the ballast.
Programmed at the factory to eliminate field errors or tampering.
Saves up to 42% in energy while operating.

Night-Saver Specifications:

120 v, 208 v3 240 v, 277 v and, 347 v AC supply.
For indoor systems as well as outdoors.
Fails to the full light output mode of operation.
Draws 1.2 watts of power.
Operates in - 30 degrees to + 40 degrees C ambient.
Control module weighs 300 grams.
Control module measures 40 mm x 80 mm x 130 mm.
Accepts low voltage DC signal input for timer by-pass control.
Optional infrared signal override can be made available.
Canadian Standards Association approved
Preset at the factory to eliminate field setting problems