Under the orange glow of a rooftop strobe, I tend to reach for plain, practical words — the ones that get the point across fast. In a warning-light context I usually call it a 'warning lamp' or 'warning light' when I want something neutral and universally understood. If I need to be more technical, 'signal lamp' or 'indicator' works well; they sound like entries you’d see on a spec sheet and imply a purposeful, regulated device.
When the mood is urgent or cinematic, I swap in 'strobe' or 'flasher' — those convey motion and panic, like a nightclub meets emergency response. For maritime or aviation contexts I sometimes say 'beacon' alternatives like 'navigation light' or 'marker' because those evoke guidance rather than just alerting. If it's distress-specific, 'flare' still carries that immediate, last-resort vibe.
Context is everything: color, cadence, and audience change what feels right to me. For a shop manual I’ll write 'warning lamp'; for a tense scene in a story I’ll reach for 'strobe' or 'flasher'. Keeps things clear and punchy — and honestly, I like how a well-chosen term can shift the whole atmosphere.