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Osram electronic ballast QTi DALI 1X21/39 DIM for fluorescent tubes 21/39/40/70w , dimmable with DALI system. Dimensions: 360x30x21mm
Osram electronic ballast model QTi DALI 1X21/39 DIM suitable for ceiling lights with HE/21W - HO/39W - DL/40W - L/70W fluorescent tubes