Sometimes producers (RIP MPOW) also directly lists on Amazon, so you pay a small premium for fast shipping from local warehouses, and get pretty decent unofficial warranty - they know Q&A on low margin items lacking, high defect rate likely - will often replaced items no question asks on 1star review with offer to change back to 5 stars to (justifiably) gush about how painless RMA process is. Sometimes they even give you the shady gift card. Much better experience than aliexpress.