Re: DIY - Tata Nexon - Installing Rear Fog Lamp Quote:
Originally Posted by Prowler Thank you Reinhard for the DIY.
For the LED, you can't use 220 Ohm resistor in series. It will drop the current to less than 50 mA instead of the 1.2 A your LED draws. You are using a 14 W LED bulb looking at the current drawn. Either you could source a lower Watt LED or add a few 3-5 A diodes in series. This would drop the Voltage and so the current will drop resulting in lower heat generation.
Another thing with Chinese LEDs - they tend to fail by going short. It will be a disaster in a car especially as the cables are drawn near the fuel supply line. Add a mandatory fuse - inline 5 A at the supply. |
Yes that was a typo, I meant to type 20Ohm. Double typed the 2! But still, your approach of adding diodes to drop the voltage makes more sense. Resistor is a basic approach where the resistor would heat up instead of bulb.
Since the halogen is glowing bright enough, I might as well stick with it for a while. When moving to the LED, will add the diodes. An inline fuse is already in place at the source relay from which I'm powering the light. No harm in adding a separate one extra for the rear fog light of course. |