Shenzhen OKT Lighting 2x4 led indirect troffer offers a traditional & modern design with the latest lighting technology. Transparent optics engineered specifically for LED sources are integrated with minimalist design and architectural materials to create a broad range of solutions with superior optical and energy performance. High performing optics allows for maximum energy savings and optimal illumination in a ultra-minimalistic shallow recessed fixture, provides a unique translucent appearance without sacrificing performance. Long-life LED system coupled with electrical driver to deliver optimal performance. LEDs are available in 3000K, 3500K, 4000K and 5000k. Standard drivers are 0-10 volt continuous dimming that work with 0-10V control/dimmer.