High litereg refers to the new light technology by juwelreg aquarium an improved lighting version on the old style t8 standard bulbsr it combines the existing tube lengths of the t8 with the new bright t5 technologyr juwel high lite blue was specially developed to simulate the light if conditions on coral reefs to depths of around 6m thanks to the special light spectrum of high lite blue the growth of corals can be promoted individuallyr bull fascinating deep blue toner bull promote