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Can You Dim Your Lightbar?



In this video I’ll show you a device that can dim and strobe LED lightbars, how it works, and how to find it at the links below:

The original video:

If you want one of these you need to email this guy – Brian Stewart: bstewart63@sbcglobal.net

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*This product is meant for entertainment purposes only. Your mileage may vary. Do not try this at home. Void where prohibited. Some assembly required. For off-road use only. Slippery when wet. Batteries not included. Do not use while operating a motor vehicle, heavy equipment, cherokee XJ, wrangler TJ, wrangler JK, or any Jeep vehicle, especially the newer Fiat ones. How-to videos may be too intense for some viewers and children under 30 years of age. Please remain seated until the 4×4 ride has come to a complete stop. Studies have shown viewing these videos causes increased cancer risks in laboratory test people. I am not a professional, I have no training, I’m not even particularly good at horse whispering. Don’t believe everything that you know. Please keep your hands in the vehicle at all times. Do not tap on glass. Do not eat anything that has been on the floor for more than 3 days. Keep your hands to yourself. Not to be taken internally. Reproduction strictly prohibited. Driver does not carry cash. Objects in Bleepinjeep mirrors may be farther than they appear.*

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37 Comments

  1. Matt I got another idea, how about a video on seat swaps? like XJ seats in a TJ and such? may be sweet info for guys who want to upgrade my seats are shot and I want something better

  2. honestly these light bars are such a big fad every retard has one now on the road. You can get better spot lights that work better and actually point somewhere, I have these on my motorcycle and they are shit at directing light. they literally throw light 100 feet high and 100ft down no way around it

  3. its just pwm that one looks kinda small but you can buy them pretty cheap on ebay or wherever just make sure its rated for more than you need but it works i had one on a little 90w light bar the only thing on real low settings only a couple leds come on but other wise its fine

  4. Thank you so much! That's awesome. Haha, I thought I was the first to think of this but glad someone else figured it out for me.
    Can you tell me what that product is called, product # and where I can get it?

    Thanks, Jonathan

  5. The strobe part make the jeep illegal to go back on the road in m y area your even forced to put a cover on the light bar when your on the road !

  6. The circuit needs to be inverse phase so it looks like /|/|/|/|/| and not ||||||. Note the slow rise and the straight drop versus the sudden rise and slow fall off. That sudden rise is where the noise comes from. How this is achieved I am not sure. It is a PWM but it has a slow ramp up and not a square wave. I do not know how they do that, but I bet I could figure it out.

  7. I've experimented around with some of the LED modules that you find on eBay from the Chinese manufacturers. One of the ones that I encountered said that it needed 17V. When I hooked it up to 12V, the voltage was too low to even get the slightest glow from the LEDs in the package. So, I added a MT3608 power boost module to it to increase the 12V to the required level. It has a variable resistor module on it that allows you to adjust the voltage up to 28V. Of course, that would be too high for a LED module that was expecting 17V, so I adjusted it low and kept a multimeter on the output while watching it increase. As the voltage gets higher, the LED gets brighter. Without some sort of stop / limiter though, you could easily burn out an LED module with this. LEDs do not have a linear response though and as you get towards the maximum voltage they are supposed to handle, it doesn't take much of an adjustment to exceed it and possibly ruin your LED. So, it would be possible to just use voltage to control the brightness of the LEDs, but you would need to be pretty careful. A safer solution might be to just have a certain number of fixed brightness levels instead of a continuously variable solution.

  8. the sound is just a result of the pwm circut switching the leds off and on at really high frequncies the maker could put a tiny pot in to fine tune it ,so it would be silent ,but its prob a cost thing ,but thanks for that been wanting to dim my leds but wasnt game to test it ,now i will cheers

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