explosion proof lighting: what actually matters after the first year

<p>Let’s strip it down to what really counts.</p><div class="" data-is-intersecting="true" data-turn-id-container="request-69d85f5e-906c-8324-a550-a6daa41569b7-30"><section class="text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [&:has([data-writing-block])>*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]" dir="auto" data-scroll-anchor="false" data-testid="conversation-turn-28" data-turn-id="request-69d85f5e-906c-8324-a550-a6daa41569b7-30" data-turn="assistant"><div class="text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)"><div class="[--thread-content-max-width:40rem] @w-lg/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn"><div class="flex max-w-full flex-col gap-4 grow"><div class="min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&]:mt-1" dir="auto" tabindex="0" data-message-author-role="assistant" data-message-id="3b9e78a0-1623-4773-821a-3b01b9285638" data-message-model-slug="gpt-5-3" data-turn-start-message="true"><div class="flex w-full flex-col gap-1 empty:hidden"><div class="markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling"><p data-end="761" data-start="590"><strong data-end="618" data-start="590"><a href="https://seekingled.com/product/explosion-proof-light">explosion proof lighting</a></strong> is designed to contain internal ignition—sparks, arcs, excessive heat—so they never interact with flammable gases or dust outside the fixture.</p><p data-end="794" data-start="763">That’s the textbook definition.</p><p data-end="976" data-start="796">But after enough time on industrial sites, the question changes. It’s no longer “is it certified?” It becomes “will it st