sildurs vibrant shaders( (up) SEUS ptgi E8 path tracing shader (below). in vanilla minecraft a sea lantern emit a light level of 15 blocks. it doesnt matter how many you put down,
MCPE-47260] Lantern item name incorrectly named as sea lantern - Jira
Minecraft Blocks & Items: Sea Lantern - YouTube
Light – Minecraft Wiki
Question about light - Discussion - Minecraft: Java Edition - Minecraft Forum - Minecraft Forum