Model - AL-115/AL-122, suitable for 2 feet (60cm) long aquariums, comes with 24 watts x 4, 12000 kelvin tubes.
Model-AL-112, suitable for 2 feet (60cm) long aquariums, comes with 55watt x 1, 12000 kelvin PL tube
Model-AL-113, suitable for 3 feet (90cm) long aquariums, comes with 36watt x 2, 12000 kelvin PL tube
Model-AL-114, suitable for 4 feet (120cm) long aquariums, comes with 55watt x 2, 12000 kelvin PL tube
Model - AL-148, suitable for 2 feet (60cm) long aquariums, comes with 24 watts x 2, 12000 kelvin tubes.