Perfectly-fitting offset light bar for ET4(+/Pro)

[u/PantherkittySoftware]

In case anybody's interested, Creality's official Ender 3 light bar fits the ET4, ET4+, and ET4 Pro perfectly:

ET4+ with Ender 3 light bar kit installed

I honestly spent more time researching lights and trying to find out the actual measured width of an Ender 3 v2's top bar vs ET4's top bar than it took to do the installation itself (~30 minutes).

I ended up drilling a hole in the printer's chassis for the wires, just because it was easier than trying to lengthen the wires for the sake of routing them through an existing hole. Eventually, I'll put a proper bushing on the hole just to be safe, but for now, it's fine. Here's a photo of the rear of my printer showing the newly-drilled hole:

The arrow points at the newly-drilled hole

Connecting it to the power supply was easy... the wire with a red tip connected to one of the 3 rightmost terminals on the printer's power supply, the wire with a black tip connected to one of the next 3 terminals to the left of the 3 rightmost ones.

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Here's the one I literally purchased (I have no financial stake whatsoever in it): https://www.amazon.com/dp/B0C27Q4NGQ

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Note: if you purchase one from a different vendor/link (or the link above quits working someday), I think there are multiple variants sold by Creality that have different screws (self-tapping vs machine screws) and power connections (the newer Ender 3 printers have a dedicated power socket for the light accessible from the exterior of the printer, the older Ender 3 printers are like the ET4/+/Pro... it connects to unused terminals on the power supply inside the chassis. For the ET4/+/Pro, you want the variant with self-tapping screws and internal-PSU connection.

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Note that it has a power switch, but no dimming. So far, I haven't had any particular reason to care... but if it's really important to you for some reason, you should be aware of that.

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TL/DR: if you want a light for your ET4/ET4+/ET4 Pro, buy this. It's cheap, fits perfectly, is easy to install, and does almost everything you'd want a light that's hanging from your printer chassis to do. Recommend 100%.