Mumbo pointed out in one of his suggestion videos that he really likes the look of sea lanterns in his redstone builds but sadly has to use glowstone because you cannot place
Sea Lantern | Islands Wiki | Fandom
Here's an illustration of the Prismarine blocks. : r/Minecraft
Minecraft Sea Lantern: How to make, Uses and more! » FirstSportz
نيزك عمود مدعى sea lantern recipe - nooutfit.com
Quick Answer: How To Craft A Sea Lantern In Pe - SeniorCare2Share