Chitu Systems Upgraded Mini Heater for 3D Printers - Versatile Temperature Control, Easy Installation, Quiet Operation, High-Performance Fan & Overheat Protection - Compatible with Most LCD 3D Printers - Perfect for Home, Office & Workshop Use

tl;dr: This heater works great! I love everything about it, the only small issue is the fan runs even when heat is off.I am really picky about using heat during the winter but this helps my prints through the cold.The setup for the unit was really easy, at first I was a little skeptical with the silicone sealing method for the lid of the printer but I have actually noticed less resin fumes in my space from the silicone seal. The only other thing required for setup is applying the metal sticker to the chamber. I use a Creality LD-002R which isn't magnetic by default but I just cleaned the spot I was applying the sticker with some 99% IPA prior to application and a month into using this unit it hasn't had any signs of problems whatsoever.Additionally the interface is exactly what I would hope for. The actual controller sticks out of the print enclosure. At first I thought this was annoying but it makes everything so much easier. You don't need to remove the lid to your enclosure and let heat leak out for any adjustments to temperature. Additionally the controller has a built in timer so whenever I start a print I also just set the timer for the duration and then I have no worries about the heater running while I am out or asleep.The only nitpick I have for this unit is that even if heating is switched off, the fan does still run at a low rpm. This has caused a few small drops outside of my vat for my printer after prints have finished but a very minor complaint. Additionally, I was able to resolve this buy buying an in-line DC barrel jack switch. If I had the granularity with this review I would probably give it a total of 4.75 stars for this problem alone. Very minor, but worth mentioning.All in all I am super happy with this unit. When I was looking at getting a heater for my printer I bought a few to try out and this one by far impressed me the most. It's quick to heat up, easy to control and gives me peace of mind with the timer function. Also because the mount is magnetic, it's really easy to switch between multiple printers if you have multiple. You just need extra silicone stripping (or drill into the lid) and some form of metal sticker. I would say it's a must have for anyone hoping to do serious resin printing in the winter.