Suitable for education & training in Textile, Paper Industries, Biology, Agricultural, Botany etc. 150mm dia graduated Projection screen with 400x Magnifications glass screen easily removable, allowing for Projection on wall, sheet metal dust proof body. Magnifications 50x to 400x. Eyepieces built-in, Objectives 5x, 10x, 40x projection grade. 12V-100W halogen light with solid state variable control input 220VAC