Dynamic Light Addon + Offhand Torch Add-on 26.30+/26.11+/26.10+/26.0+/1.21+/1.20+/1.19+/1.18+/1.17+

During cave exploration, you will no longer have to constantly stop to place torches. Dynamic Light Addon + Offhand Torch lets light sources illuminate the area right in your hand. This mod supports automatic and manual torch transfer to the offhand. The offhand supports all types of torches and lanterns, and dynamic light works with a wide variety of items in Minecraft.

Automatic Mode

The light source is automatically switched to the left hand when you hold it in your right hand

Manual Mode

You need to use the /function handtorch command to switch the item from the right hand to the left hand