What is the cheapest wholesale price for LED panel lights 2x2 2x4 ceiling from China?

Factory-direct pricing for LED panel lights 2x2 2x4 ceiling from China (Zhongshan/Shenzhen): LED bulbs: $0.50-3 FOB. LED strip lights: $1.50-5/meter. LED panel lights: $5-25/unit. LED floodlights: $8-35/unit. LED downlights: $3-15/unit. LED high bays: $20-80/unit. Prices depend on: LED chip brand (Epistar vs no-name), driver quality (Meanwell vs generic), housing material (aluminum vs plastic), and lumen output. To get cheapest prices: order 500+ units, use sea freight (saves 60-70% vs air), buy directly from factories (not trading companies), and order during Chinese New Year slowdown (Feb-March factories offer discounts). Sourxera's factory network offers 20-35% below typical B2B platform prices for bulk orders.