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

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: 154081898

Details

Brand
Bestol
Color
Black
Form Factor
Stationary
Indoor/Outdoor Usage
Indoor
Special Feature
Adjustable

⚡12V AC/DC versatile voltage

🔥50W max power output

🌡️Consistent 220°C surface temp

€ 19.66

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Description

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

DURABLE CERAMIC BUILD - Long-lasting, insulated surface ensures safety and extended service life.
PLUG PLAY CONVENIENCE - Compact 50x15mm size with 150mm leads for easy installation anywhere from home to office.
DUAL VOLTAGE FLEXIBILITY - Works seamlessly on both 12V AC and DC power sources for versatile applications.
RAPID HEAT UP ZERO WAIT - Experience near-instant warmth with fast PTC ceramic heating technology.
PRECISION TEMPERATURE CONTROL - Maintains a stable 220°C surface temp for reliable, safe heating every time.

This 2-pack of PTC ceramic heating elements delivers up to 50 watts of consistent heat at 220°C, powered by versatile 12V AC/DC input. Designed for rapid heat-up and long service life, these compact, insulated heaters are perfect for indoor use in offices, homes, and outdoor gear like tents or greenhouses. Their stable temperature control and durable construction make them a reliable upgrade for any climate control setup.

Specifications

ASIN	B07VBDT8NL
Amperage	4.17 A
Best Sellers Rank	#461,107 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,142 in Water Heater Replacement Parts
Brand Name	Bestol
Color	Black
Customer Reviews	4.3 4.3 out of 5 stars (85)
Form Factor	Stationary
Fuel Type	Electric
Global Trade Identification Number	08846985146331
Heat Output	50 watts
Heating Element	Radiant
Heating Method	Convection
Indoor Outdoor Usage	Indoor
Item Dimensions D x W x H	0.14"D x 0.14"H
Item Weight	0.02 kg
Manufacturer	B12019071802
Max Temperature Setting	428 °F
Min Temperature Setting	20 °C
Mounting Type	Floor Mount
Number of Items	2
Number of Packs	2
Part Number	AAA710
Recommended Uses For Product	Office, Home, Garage, Desk, Patio, Camping, Tent, Garden, Greenhouse
Room Type	Bedroom, Home Office, Kitchen, Living Room
Special Features	Adjustable Temperature

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€ 19.66

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered 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 Belgium.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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