【Superior Illumination & Energy Savings】 Long-life LEDs with high-efficiency drivers deliver superior illumination with a high efficacy of 150 lm/w, reaching 7500 lumens and lasting over 50,000 hours. No bulb replacement is required. Plus, it can save up to 85% of electricity. 【Versatile & Adjustable】 OKQ 2x4 LED flat panel lights feature a 3CCT dimmable option, offering three color temperatures: 3500K, 4500K, and 5000K. Ideal for commercial and residential settings, LED Panel Drop Ceiling Lights suit offices, studies, supermarkets, hotels, and production areas. Select from three wattage options (30W, 40W, 50W) to find the perfect brightness. Unlike most 2x4FT LED panels, OKQ allows adjustment of both color temperature and power, providing unmatched functionality and customization. 【DIMMABLE 】Smoothly dimming compatible with 0-10V dimmers (Dimmer Not Included). No flashing, No noise. The skylight flat LED panel light offers a CRI>85+ for even, soft lighting with no flicker or buzzing, protecting your eyes and reducing fatigue. Ideal for offices, conference halls, and lecture rooms, it ensures excellent light quality 【Wide Application】The 4-foot led light fixture for workshop delivers soft, glare-free, ambient lighting in Upgraded Ultra-Thin Design- Our new generation panel light is only 1.18" thick and fits most ceilingsdesign. The slim profile of the fixture coupled with energy-saving LED technology make the Troffer an ideal choice for renovation or new construction. The 2x4FT LED ceiling panel lights offers a high-quality, cost-effective LED lighting solution for schools, offices, retail, healthcare facilities and other commercial spaces. 【Exceptional After-Sales Service】OKQ offers reliable, energy-efficient lighting solutions for businesses of all sizes. Our products, designed for performance and durability, enhance any commercial environment with optimal illumination and energy savings. Customer satisfaction is our top priority, ensuring peace of mind with every purchase. Item Description: OKQ  20 Pack 4FT LED Flat Panel Light Surface Mount  Certification: ETC and DLC. Application: Meeting the general and decorative lighting environment of office ,hotel ,store ,school ,hospital ,meeting room ,dining room, etc Technical parameters Power 50W/40W/30W Voltage 100-277vac Color temperature 5000K/4000K/3500K 0-10V dimmable Life 50000 + hours OKQ 2x4 led troffer is a general lighting fixture for large space, including open office, circulation area, classroom, library, cafeteria, airport ticket and waiting area, as well as many other commercial applications. OKQ 2x4 LED Flat Panel Light has low energy consumption, long life and shadow free sustainable lighting. The central hanging basket design provides a huge alternative space for old fluorescent lights and lamps in offices, schools, hospitals, hotels, conference,rooms, families, exhibition rooms, supermarkets, airports and railway stations.