A flash deal is a promotional offer available for a very limited time (typically 2-24 hours), designed to drive a burst of sales through extreme urgency. Flash deals are inseparable from countdown timers — the timer IS the deal mechanism. Without visible remaining time, a flash deal loses its urgency and becomes just another sale. The countdown creates the psychological pressure that makes flash deals effective, often driving 5-10x normal sales velocity. Why Flash Deal Matters: Understanding flash deal is essential for anyone working with countdown timers. How long should a flash deal last? 4-8 hours is the sweet spot — long enough to reach your audience but short enough to create genuine urgency. How often should I run flash deals? Monthly or quarterly for maximum impact. Too frequent and your audience learns to wait for the next one.
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