Z-TOCR Series is a stand of Top opening Cleanroom Frame Less Light fixtures, with the unique design of the construction of it you can easily fix in your puff / moudlar ceiling without frame, you ceiling panel will work as a frame, fixture comes with additional walkable cover with stiffeners welded inside for better weight bearing capcity,it also comes with two color option ( white & Monochromatic yellow ) also, it comes with combine option like both the lights are in Single fixture for light sensitive areas.