Take a look at this LED light pad on Amazon for $9.99 after a 50% off coupon, down from the regular price of $19.99.
This dimmable light board is USB-powered. It's suitable for various tasks such as sewing projects, sketching, drawing, stenciling, 2D animation, calligraphy, embossing, tattoo transferring, stained glass work, and quilting.
If this item doesn't work out for you, I recommend checking out Amazon's return policy.