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Samsung Lm301h Evo 320W Full Spectrum LED Grow Light 2FT*4FT Aluminum Body IP65 for Indoor Plant Growth Bloom 480W 640W Options LED-Light. Full Spectrum Lighting: 3000K+5000K&660nm+730nm(IR) for optimal plant growth. Durable Aluminum Housing: IP65 rated for damp locations with 100,000+ hour lifetime. Flexible Dimming Control: Supports manual dimmer and RJ controller for precise light adjustment. Comprehensive Certifications: ETL, DLC, CE, TUV, RoHS, FCC, PSE, LM79, LM80 certified. Free Logo Customization: Laser or silk print company logo and item number at no cost. Low Failure Rate: Strict quality management with first-class LEDs and drivers. Extended Warranty Options: Standard 3-year warranty with 10-year options available.