This are easy to useThis are highly durableThis is manufactured in ChinaGe, fc16t9cw, 40W, cool white circline tube, fluorescent light bulb, 16" outer diameter, 4 pin base, 2700 lumens, 12,000 hours, 4150 Kelvin, cri=62.Brand: G E Lighting, Model: 33893, Color: White, Size: 1