Adjustability varies by product: some night lights rotate 360°, many lamps offer adjustable swing arms or bases, certain projectors tilt to aim at walls or ceilings, and several pendants include adjustable hanging height.
Heights and sizes vary: floor lamps range roughly 56 in to 71.5 in tall, pendants can be substantially larger (example: 19.25 in H x 27 in W), and compact LED projectors are around 5.91 in tall.