Shows a 5 - 50 w power consumption. does that mean they draw max w at start up and then ramp down as they reach max temp? if not please explain

Initially these PTC heating element will draw low current <1 amp for a few seconds and then they will draw nearly 4.5 amps for about 10 seconds and stabilizes to about 2 amps at maximum temperature. To make this more manageable I found ramping the voltage up to 12VDC from 9VDC keeps the current below 3 amps at all times but does increase the time to get to full temperature (<40 seconds) . You can do your own voltage profile to see what fits your application best.

How many amps does does one unit draw?

0.9A-4.5A-2.0A is the current swing.

If I power these a limited current 12v power supply (lets say 500milliamps) will that limit the temperature or will it simply not function?

These should just limit the temperature available with lower amperage. These type of devices should be able to vary the temperature based on the current provided. I have not put these in service yet, but that is what I am expecting while using these as a heater when combined with heat sinks.

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Q: How many amps does does one unit draw?

0.9A-4.5A-2.0A is the current swing.

Q: If I power these a limited current 12v power supply (lets say 500milliamps) will that limit the temperature or will it simply not function?

These should just limit the temperature available with lower amperage. These type of devices should be able to vary the temperature based on the current provided. I have not put these in service yet, but that is what I am expecting while using these as a heater when combined with heat sinks.

ASIN	B07VBDT8NL
Best Sellers Rank	#2,112,245 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #2,490 in Heater Parts & Accessories
Brand	Bestol
Burner type	Radiant
Form Factor	Stationary
Fuel Type	Electric
Global Trade Identification Number	08846985146331
Indoor/Outdoor Usage	Indoor
Item Weight	20 g
Item part number	AAA710
Manufacturer	B12019071802
Max Temperature Setting	428 Degrees Fahrenheit
Min Temperature Setting	20 Degrees Celsius
Mounting Type	Floor Mount
Product Dimensions	12D x 15W x 50H Millimeters
Recommended Uses For Product	Office, Home, Garage, Desk, Patio, Camping, Tent, Garden, Greenhouse
Room Type	Living Room
Special Feature	Adjustable Temperature

2pcs PTC Heating Element 5W-50W AC DC 12V 220 Degree consistant Temperature Ceramic Thermostatic

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