Befenybay2pcs 3D Printer Heated Bed Insulation Lightweight Foam Foil 220x220x5mm (8.66x8.66x0.2 inch) Self-Adhesive Insulation Mat Sticker Hotbed Thermal Pad for Ender 3 (220x220x5mm)

improved the heating speed of the hot bed so result

I got this as a quick and easy way of upgrading my Ender 3 Pro.Once the insulation was installed it helped the print bed hold its temperature better, and it did seem to reduce the power consumption of the printer of around 5W in use. The bed loses heat a lot less quickly now, and if you are printing directly after another print has finished you are ready to go a few minutes earlier, which is great if you are as impatient as I am.Fitting the insulation was fairly easy, but you need to remove the heated print bed to attach the insulation, so you will need to do a full relevel of the bed, which I certainly did not enjoy after using automatic bed leveling for a while.Anything that helps reduce power consumption and help your print bed retain heat is something I could only consider a good thing, and I am really happy to have this insulation.