The Osram QTI 1x28/54/35/49 GII/230-240 is a high frequency ballast to run: 1x 28w,54w,35w & 49W T5 lamps. These ballasts have an average lifetime of 100,000 hours They offer flicker free light, have an automatic safety shutdown at lamp failure, automatic restart after lamp replacement and are suitable for emergency lighting.
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