From Ring of Brodgar
Vital statistics
Size 1 x 1
Terrain (None)
Produced By Working with fire
Required By Irrlantern
Study details
Base LP 500
Study Time 
StudyTime Input:

The studytime infobox parameter accepts two formats. An Hour-float (studyTime = H.hhhh) or a Time-code (studyTime = H:M).

Proper input rules:
H.hhhh: (Dot delimited) At least one leading digit, and at least 4 decimal digits.(good: "0.1230", bad: ".123")
H:M: (Colon delimited) At least one hour digit, and 1 or 2 minute digits. (good: "0:1", bad: ":1" or "0:123")

(Although bare integer-input would work for both format cases, there currently deemed improper formatted input.)
2h 25m
Mental Weight 5
EXP Cost 2
LP / EXP 250
LP / Hour (real) 206.9
LP / Mental Weight 100
LP / Hour / EXP 103.45
LP / Hour / Size 206.9
LP / Hour / Weight 41.38
LP / Hour / Size / EXP 103.45
LP / Hour / Weight / EXP 20.69
Go to Objects

Irrlight is a Curiosity which can be used in the Study Report to earn Learning Points.

Irrlight can randomly appear when working with fire - dropping a Pyrite Spark, extinguishing a fire, accessing lit smelters, and similar activies.


  • Irrlight can be used to instantly light fire or workstations.