when I first got this they had to replace the curing light as I used some of the bottles I found the labels were ambiguous at best, on them have numbers and the number is listed as a list such as "acrylic, pc, pvc, abs glasses, ceramics, metal, wood, leather, paper" without any other reference. Pet crates, pet-based 3D, printing materials, crystal, glass, metal, wood", the third is almost the same except for "wood". received no response