Spare transformer for A-series 11W LED aquarium lights. When a LED light fixture breaks in a way that all or a section of LEDs do light light anymore, the problem is usually in the ballast (transformer) part. In the A-series LED lights the transformer is an external part which is quick detachable from the light panel, so it is very easy to replace.

NOTE! A-series transformer is model specific so it can be only used in 11W (50cm light units, the exact transformer type is SL-2001, DC20V 1A