These are 591 nw 100 mw yellow lasers on Ebay. Expensive 100 US. Bought a lot of lasers modules from Ebay.

Do those actually work? Our natural gas furance is 30 years old and Quebec is phasing out oil and gas for electric but hybrid hmm.

I just got Paprika 120 grams and the compounds about 1 to 2% can be extracted with 70% ethanol and mineral oil. It is safe as long as it is not ingested.