https://visualeducation.com/class/shadowless-lighting-for-photographing-products-on-white/

In this live show, Karl demonstrates a useful technique for creating shadowless lighting when photographing products on a white background.  This technique is often required for e-commerce or catalogue product photography and is something we’ve been asked about a lot. To help you achieve this look Karl demonstrates a start-to-finish shoot showing the simple technique that can be used to achieve this.  To start, Karl shows how one would normally light products on white (you can find more in-depth demonstrations on this in classes such as our packshot product photography class, high-end headphones product shoot, or rings jewellery photography shoot). The problem with this technique is that it can be very difficult to eliminate shadows entirely, which is what is often required when shooting e-commerce products.