Qtp5 2 x 54 w electronic ballast unit quicktronic professional for t5 lights made by osramthe ballast unit benefits from a broad range of applications a useful life of 100 000 hours and a high switching capacitythe automatic restart following a bulb change and the highest cut off technology enabled energy efficiency represent additional benefits energy efficiency class a2 bat a further benefit is the automatic switch off function in case of lamp failures or when the life of the lamp has r