Step-Dimming FAQ

What is step-dimming?
Step-dimming is an easy to install, inexpensive dimming solution allowing the user to select between 3 levels of light output (100%, 40% and 10%) offering a versatile and energy efficient lighting concept for many applications.

Where can I use step-dimming?
Applications Include: Offices, Classrooms, Conference Rooms, Stairwells, Warehouse Aisles, Retail Spaces

How does step-dimming work?
Step-dimming works on bi-level switching (2 standard wall switches). Depending on how the switches are set (on/off) deter­mines the level of light the ballast and fixture with produce. However, step-dimming can also be accomplished by using one (1) wall switch and a control device or constant direct wired power and a control device.

What type of control devices can be used with PureSpectrum’s step-dimming products?
PureSpectrum step-dimming products can be used effectively with a range of optional control devices such as: Motion Sensors, Occupancy Sensors, Vacancy Sensors, Photocells, Time Delay Switches, Standard Wall Switches

How much money or energy can I save by using PureSpectrum’s step-dimming fixtures or ballast?
Through the utilization of step-dimming you can save as much as 77% of the energy normally required to light up an area.

What parts of a fixture will need to be replaced if I retro-fit a fixture with a PureSpectrum step-dimming ballast?
When retrofitting 4’ T12 fixtures with PureSpectrum step-dimming ballast, only the ballast and lamps will need to be replaced. In the case of retrofitting T8 fixtures the ballast, and in most cases, the tombstones will need to be replaced.

Is it more cost effective to retro-fit or replace my fixtures with PureSpectrum’s step-dimming products?
There are many factors that play into this answer- age of the fixtures, application, location, type of fixture are all factors that will need to be determined as to the best cost solution. Please consult your electrician or your PureSpectrum representative for more information. They will be glad to help.

Is there any additional wiring required to use PureSpectrum’s step-dimming products?
You will not need additional wiring when a room or area that is being retrofit is already using 2 switches to control two series of light fixtures.

Is there enough light output when the lights are in dim mode to charge my NYC required Glo-Brite strips?
Yes, the Glo-Brite strips require a constant average 2 footcandle power to charge and the PureSpectrum step-dimming prod­ucts meet this requirement.

Can PureSpectrum’s step-dimming products be wired to ‘trip’ to 100% output during a fire-alarm?
Yes, PureSpectrum step-dimming products can be wired to override to 100% illumination during an emergency.

Is the life of the lamps or the ballast shorter or degraded because of the dimming function of the ballast?
No, the lamp life is preserved because the PureSpectrum step-dim ballast is a ‘programmed-start’ ballast and slowly starts the lamps as opposed to starting with in instant jolt of electricity to ignite the lamps. The ballast carries a 60 month warranty.