biOrb® 12V transformers function as the power source for both the air pump and light for your biOrb® aquarium. Fits all biOrb® models, and comes with a 12 month guarantee.
Tip: If your previous transformer has stopped working and you have a standard light unit, check that the last bulb you fitted was the correct size. If you have fitted a larger bulb it will 'blow' the transformer and stop it working. If this is the case, replace the bulb before plugging in your new transformer.