<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31379726</termId><termName>black light bulbs</termName><termType>PT</termType><termNote><![CDATA[ Fluorescent lamps, available in two types, with ultraviolet emitting phosphors. Used in the ultraviolet investigation of cultural materials, conservation, and in many scientific contexts. Filtered black light blue bulbs produce a dark violet glow with phosphors releasing near 404.7 nm; non-filtered black light bulbs emit a light blue light with phosphors releasing near 360 nm. ]]></termNote><termCreatedDate>2026-03-30 20:42:26</termCreatedDate><relation><relationType>UF</relationType><termId>31379727</termId><termName>black light bulb</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31379728</termId><termName>black lightbulbs</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31379729</termId><termName>black lights</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31379730</termId><termName>bulbs, black light</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31349898</termId><termName>light bulbs</termName><termType>PT</termType></relation></term>  </Zthes>