The LED MultiLux lighting unit is a high-performance, energy-efficient lighting unit for ornamental fish in JUWEL aquariums. The old T5 lighting units can be completely replaced with the new MultiLux LED units. The replaceable LED tubes of the DAY and NATURE types create an ideal light spectrum for plants and fish, with up to 50% energy savings compared to T5 lighting units. T5 bulbs will not work in these new units, and LED bulbs will not work in the old T5 units. Both LED bulbs must be inserted into the unit to function correctly, and they will not work alone with just one tube. The 14-watt LED MultiLux unit with a length of 70 cm fits Trigon 190 and Lido 200.