Clamp Desk Lamp How To Use A Clamp Lamp On A Tank With A Screen Lid?

How to use a clamp lamp on a tank with a screen lid? - clamp desk lamp

I have a leopard gecko and was living in my house, so that only the light stop directly on the screen, but attending a high school cover-environment in which we are entitled to small animals in our offices and say we can have heat lamps if they do not touch directly. So I thought, this is my ok cool lamp has a clamp not a big problem, unless there is no place to pinch myself when I use the screen .. My options?

Thanks in advance