3Dman24V 50W Heater Cartridge 620 Heating Tube HT-NTC100K Thermistor 1M for Ender 3 CR-10 Sensor Heater Block V6 J-Head Hotend Extruder 3D Printer (5 Pcs)

I purchased a pack of these to replace the stock heater on an ender 3 v2 machine. A PID tune and a quick install got me up and running very quickly. There is a metal crimp immediately after the cartridge that makes bending the wires very difficult. This is common among heater cartridges but this one seemed especially long. Be wary of this if you need your wires to bend up quickly or sharply right at the block. Speaking from the experience of a volcano user. Overall, a great product. Works well and I’ve had no failures so far.

I had purchased this to replace the stock heating cartridge after the positive voltage wire wore thru and came off. What a fantastic upgrade! The hotend heats up MUCH faster, and is able to maintain temperature better on high temp filaments. The extra 10W caused me to perform an auto PID tune because the machine was overshooting/undershooting so much initially. Again, great upgrade!

All 5 tested @50W (+-0.5W). I have ordered heater cartridges off amazon before that were up to 8W under what they listed. I haven't used these much yet. If I have any issues I'll update this review.

These are great if you are getting a all metal hotend that allows you to print at higher temps. These will do a better job at higher temps than most stock thermister heat cartridges.

Replaced the original failed cartridge with one of these on 10/26/2021. Worked well with fairly limited use until 12/9/2021. Unit failed with an open in the cartridge. Replaced with another cartridge from the same seller. Will see how long this one lasts, and will update this entry.Update 02/16/2022:The cartridge that I used to replace the above started acting flakey a day or two ago, with wildly fluctuating temps. The cartridge today failed, with a Thermal Runaway error on my ender 3 pro right in the middle of an 11 hour print. I am NOT happy with these cartridges and am downgrading to one star only because I can't assign any fewer.