Check the listing for details. 3m 1830 overhead projector. Condition: Used. Listed at 199.00 USD. 3m 1830 overhead projector. 3M Overhead Projector With bulb. Retails new for $325 Excellent lighting source for Artists and Photographers alike. 360 watts. There are a number of ways to use projectors in a shoot. You can aim it behind the model, you can aim it onto both the model and background or you can position it in a manner that it falls on the subject but not the background. Anyone can paint a mural using a projector–no talent or experience are required! Simply create a black and white version of a high-contrast image and project it largely on a wall. Trace over the lines of the projected image using a pencil, then allow guests to fill in the mural together using paint 3M Overhead Transparency Projector. Brighter white light Rug adorable assembly Quiet fan Cool projection stage Top mounted controls Light, compact Low profile design Advanced system styling