SUNLU launches AMS Lite heater for Bambu Lab users
SUNLU’s AMS Lite Heater lands July 20 at $129.99, letting Bambu Lab A1 owners dry four loaded spools without giving up multicolor printing.
SUNLU will put the AMS Lite Heater on sale July 20 at 07:00 UTC for $129.99, aiming it squarely at Bambu Lab A1 and A1 mini owners who want four-spool convenience without moving damp filament in and out of a separate dryer. The company is pairing the launch with its 13th anniversary push and a U.S. operations expansion, but the real hook for desktop users is simpler: the heater wraps the open-air AMS Lite in a heated enclosure and keeps the swapper working while filament dries.
That pitch lands because Bambu Lab already spells out the problem. Its wiki says moisture in filament can cause stringing, oozing, holes, rough surfaces and reduced strength, and the AMS Lite itself is built around four spools with automatic filament backup, RFID filament sync and multi-color, multi-material printing. Bambu Lab also says an A1-series printer can connect to only one AMS Lite at a time, which makes this an upgrade for a single desktop workflow rather than a way to build out a larger material farm.
The add-on makes the most sense if your queue includes moisture-sensitive materials and you want them ready in the machine instead of on a bench-top dryer or in a dry box. Bambu Lab labels PLA as low moisture sensitivity, while SUNLU says the heater is designed for PLA, PETG, ABS, ASA and PA and can run up to 70 C. That combination points to a clear buying pattern: mostly PLA users can probably keep drying separately, but anyone running PETG, PA or other humidity-prone materials through long color swaps has a stronger case for in-place drying.
Fabbaloo’s hands-on look shows this is not a casual clip-on accessory. The heater dries all four spools on timed cycles, adds temperature control and preset profiles for common materials, and still asks for real setup because the AMS Lite has to be disassembled and rebuilt inside the housing. That extra bulk, plus the $129.99 price, is exactly why the heater is a decision item rather than an automatic buy: it is for A1 owners who want a tighter filament-management workflow and are willing to trade desk space and another powered enclosure for fewer moisture headaches.
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