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

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.

Product ID: 395384100

Details

Brand
Bestol
Colour
Black
Form factor
Stationary
Indoor/outdoor use
Outdoor
Special features
Adjustable

⚡12V AC/DC versatile power input

🔥50W max power for rapid heating

🌡️Consistent 220°C surface temperature

$U1815

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Description

🔥 Stay warm, stay ahead — heat that never quits!

DURABLE CERAMIC BUILD - Long-lasting PTC ceramic element ensures safety and consistent performance under heavy use.
PLUG PLAY CONVENIENCE - Compact 50x15mm size with 150mm leads for easy installation in home, office, or outdoor setups.
DUAL VOLTAGE FLEXIBILITY - Works seamlessly on both AC and DC 12V power sources for versatile applications.
PRECISION TEMPERATURE CONTROL - Maintains a steady 220°C surface temp for reliable, safe heating every time.
RAPID HEAT UP ZERO WAIT TIME - Experience instant warmth with 50W high power output that adapts to your environment.

This 2-pack of PTC ceramic heating elements delivers up to 50W of power at a consistent 220°C surface temperature, powered by versatile 12V AC/DC input. Designed for rapid heat conduction and long service life, these compact heaters are perfect for indoor and outdoor use, offering reliable, safe, and energy-efficient warmth for your home, office, or outdoor projects.

Specifications

ASIN	B07VBDT8NL
Amperage	4.17 Amps
Best Sellers Rank	#107,496 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #11 in Water Heater Replacement Heating Elements
Brand Name	Bestol
Color	Black
Form Factor	Stationary
Fuel Type	Electric
Global Trade Identification Number	08846985146331
Heat Output	50 Watts
Heating Element	Radiant
Heating Method	Convection
Indoor Outdoor Usage	Outdoor
Item Dimensions D x W x H	12D x 15W x 50H millimeters
Item Weight	0.02 Kilograms
Max Temperature Setting	428 Degrees Fahrenheit
Min Temperature Setting	20 Degrees Celsius
Mounting Type	Floor Mount
Number of Items	2
Number of Packs	2
Part Number	AAA710
Power Source	Corded Electric
Recommended Uses For Product	Office, Home, Garage, Desk, Patio, Camping, Tent, Garden, Greenhouse
Room Type	Living Room
Special Features	Adjustable Temperature

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$U1815

Duties & taxes included

In stock

Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Uruguay.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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