Accendo Electronics – World Leading Digital Ballast (DHID) Technologies

GloGreen Digital Ballasts

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Dimming of GloGreen Digital Ballasts

Dimming, for many applications, can significantly benefit the overall energy savings of HID lighting system installations. All GloGreen Digital ballasts are dimmable to approximately 50% of their maximum wattage capability as the micro-processor system is capable of regulating the incoming power, thus establishing the basis for a true energy saving dimming option. Dimming can be achieved automatically or on demand in the following modes:

Dimming Through Motion Sensors

Dimming mode is enabled automatically, once the motion sensor is connected or plugged into the ballast. The motion sensor detects any motion within its 55° cone sensing field and adjusts the illumination as described below.

70W and 150W – Low Frequency Ballasts, Step-down Dimming

Range of dimming is selected by adjusting the dip-switches on the ballast; for example:
70W ballasts can be dimmed to 50W or 39W
150W ballast can be dimmed to 125W or 100W.

250W and Higher – High Frequency Ballasts with Step Down

Range of dimming is determined by the lowest wattage capability of the ballast, for example:
320W ballast (150/200/250/320W) is dimmed automatically to 150W.

Dimming Through RF (Radio Frequency) Interface – High Frequency Ballasts

Continuous Dimming

Dimming is enabled through a Light Management RF controller that communicates with those fixtures equipped with the RF communication module. The RF controller is equipped with a touch screen and provides a wide range of continuous dimming options depending on plant requirements as ballasts can be dimmed individually or as a group (zone) by any percentage of power between 100% - 50%.

Zone Dimming

All or specifically pre-selected ballasts, equipped with RF modules, can be dimmed at a pre-determined time or at any given time, on demand, or by the operator.

Individual or Selective Dimming

All GloGreen digital ballasts can be dimmed either individually, based on a pre-programmed time schedule in Automatic Mode or selectively at any time by the operator.

RF Controller

The RF Controller is a powerful software tool that is capable of providing real time monitoring and data acquisition of the functionality and the performance of every ballast within the lighting system or network. It provides valuable information for both preventative and spontaneous maintenance activities.

Ballast Frequency

The variety of HID bulb types available on the market require both high and low frequencies for the optimum ignition of the lamps. Continuous dimming applications, however, require high frequencies. A 70W ceramic metal halide bulb, for example, requires low frequency ignition, whereas larger HID bulbs of 150W or higher (especially those with mogul sockets), can only be subjected to continuous dimming at a High Frequency.

Accendo offers both square wave low frequency (200-400Hz) and sinusoidal high frequency (100-200 kHz) digital ballasts. In order to maximize the benefits of existing and new technologies the patented frequency modulator and a micro-processor are used for all GloGreen ballasts to regulate the frequency and the power requirements in order to achieve the most optimum efficacy, dimming and lumen maintenance performance.

This latest advancement resulted in the development of an unparalleled technology offered by no other ballast manufacturer on the market: Universal HID Capability Combined with Dimming. The GloGreen digital ballast can automatically recognize which type of lamp (MH, HPS or CMH) is installed and ignites it with the optimum level of power, amperage and frequency.

Low Frequency Digital Ballasts (70W & 150W Types)

Low Frequency digital ballasts offer significant benefits over conventional magnetic ballasts in terms of improved efficacy and lumen maintenance.

Why Are Low Frequency And High Frequency Digital Ballasts Important?

With the introduction of CMH lamps with Wattages up to 150W, the optimum charge of the burning chamber is within the low frequency range of 100 - 200Hz. If continuous dimming becomes a requirement (in the case of lamps with mogul sockets for example), high frequency operation becomes a fundamental requirement.

High Frequency Digital Ballasts (150W – 1200W)

The optimum ignition charge and continuous dimming of higher-wattage HID lamps requires the use of a high frequency sinusoidal ballast. This frequency range benefits HID lamp applications with increased lamp life, improved color, electrical efficiency and lumen maintenance due to the characteristics of High Frequency operation. As a result, lamp ignition or start-up is less damaging on the lamp’s electrodes considering the digital ballast utilizes approximately two thirds less energy when compared to conventional magnetic ballasts in the ignition process.

In addition, the micro-processor technology of the digital ballast isolates the lamp from line voltage fluctuations, which in turn, eliminates line variations as a source for lamp life degradation. GloGreen High Frequency digital ballasts offer superior lamp start-up times to full illumination (60 seconds), light output (114 to 118 Lumens/Watt) and hot re-strike faster (2.5 – 3.0 minutes) when compared to other ballast products on the market.

High Frequency for Hydroponic Applications

Ballast and light frequency are the most significant attributes for achieving the quickest and optimal growth yields of greenhouse plants.

Sunlight energy, as a benchmark produces the equivalent of 100 kHz; referred to as the Photo-synthetically Active Radiation or PAR frequency. This is the ideal frequency for high yielding plant growth. Consequently, conventional hydroponic ballasts used today do not operate in the desired high frequency range equivalent to PAR or above PAR. Conventional hydroponic ballasts operate within a 40-70 kHz range, and therefore operate at a frequency well below PAR and do not provide the optimal conditions for high-yielding plant growth. Greenhouses utilizing magnetic or electronic ballasts with below PAR frequencies do not maintain the most favourable and economical growing conditions. All GloGreen digital high frequency ballasts operate within the most advantageous 100-200 kHz frequency and maximize the energy efficiency and mean time before failure specifications of all HID lamps, including High-Pressure Sodium (HPS) bulb applications.

With the introduction of the GloGreen Digital Ballast for Greenhouse applications, Greenhouse operators can now maximize the return on their lighting investment and profitability due to:

higher yielding plant growth now possible in a shorter timeframe.
the higher energy and electrical efficiency of the GloGreen digital ballast.
low cost of investment and the availability of Government grants and incentives for Greenhouse operators.

The GloGreen digital ballast offers an excellent return on investment; please use our “Money Saving Opportunity” calculator in the top right hand column of this page to determine your potential lighting project savings. For additional information, or to arrange your Risk Free Trial please Contact Us.