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Warm Start Ballast Vs Cold Start Balast
With the introduction of occupancy sensors it is imperative when ordering luminaires, that the type of electronic ballast be specified. In terms of the European standards for electronic ballasts, referred to as CELMA, Electronic ballasts fall into 3 categories i.e.:
A1 = Dimmable
A2 = Warm Start – Allows for frequency of ON/OFF switching
A3 = Instant Start – Restricted in terms of frequency of ON/OFF switching.
In a luminaire installation where switching is controlled by means of occupancy sensors, therefore
potentially subject to numerous ON/OFF switching, the luminaires should be supplied with a warm start ballast. |
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