I need advice for 12vdc resister for warmth

H

Hooey-Doo Hollow

New Member
I hope to replace an incandescent light bulb in a wax tart warmer with a resister. I assume a low watt and low ohm resister would work. How about 10w 3ohm resister on the 12vdc circuit?
 
Sort by date Sort by votes
20 Ohms resistor is what you need to give 7 W at 12 V. Use at least a 25 W rated resistor if you want that much heat without the resistor surface temperature getting too hot.

If you are using it in car, the voltage will be around 14 V with the car running. You would need 28 Ohms to get 7 W at 14 V.
 
Upvote 0 Downvote
You must log in or register to reply here.

Similar threads

Z
Need some help for a FM LIFI communication
Replies
1
Views
2K
rjenkinsgb
F
  • Question
Need to design and build 250W BLDC inverters for drones
Replies
2
Views
2K
Papabravo
T
Need help checking over schematic for Arduino Nano Audio Sequencer PCB
Replies
6
Views
4K
liamjerr
L
R
  • Question
Schottky diodes question for circuit
Replies
14
Views
4K
Nigel Goodwin
D
Resistor size for capacitor
Replies
8
Views
2K
Shagreobe
S
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…