Built in Resistor Anti Hyper flashing LED Question

I have ordered Zevo LED bulbs for the rear of my 3rd gen. However, I feel confident the tails (7440s) are going to hyperflash so I am think about not even opening the package and returning them. However, since the remaining rear bulbs (brake, reverse, plate) will be Zevos I am wondering if the tails will look out of place with the others being LED.

One of the reasons I like LEDs (not just in the auto but at home) is they run relatively cool. I have seen "cooked" sockets in older cars - maybe from long term heat exposure from the halogen bulbs "baking" the plastic. So in addition to being instant on, low draw, LED brake, tail, and backup bulbs should run much cooler than the halogen.

I don't want to splice wire in resistors and screw them to metal. I have seen the LED bulbs on Amazon that have the resistors built directly into the bulb. But I would expect these would get hot. Just as the splice in resistors do. I think that is how resistors work.

But now the heat is in the socket and the plastic rear light housing not against metal. However, several of these resistor anti hyper flash LED bulbs have numerous highly rated reviews on-line. But I just don't understand how they don't run hot.

I have googled/youtubed and I see nothing on this issue. I figured someone would have hooked them up to a 12v power source and let them run and used an infrared temp gun on them at different time intervals (like 30 seconds, 1 minute, 1.5 minutes, 2 minutes etc) to see how fast and how hot they get. But I found nothing - which seems kind of impossible today.

If the built in resistor bulbs are a great idea why does philips, osram, sylvania, diode dynamics, not make them. They seem to be made by names I am not familiar with. Which makes me question.

Sorry for such a long and rambling post. Most of you have much more knowledge in this area than I so I would appreciate your thoughts on these. If they work with out excessive heat then I might give them a go. If not, then I will try my Zevos which will very likely hyperflash; and I will put the halogen 7440s back in and call it good.

 

I have personal experience with several LED bulbs that supposedly will not hyperflash. I started with LASFIT bulbs and as advertised, they do not hyperflash - unless you leave them on a for a minute or two - then they do. When I inquired as to why, I was told that they do get warm and there is internal circuitry that basically sends the bulb into a "protect mode" to prevent it from overheating and doing damage. The protect mode involves shortening the amount of "on time" in the bulb - which is the same as hyperflash. Would these bulbs get warm / hot enough to do damage? I don't know, but since I use my 4-way flashers a lot, I decided to try something else. BTW, I tried touching one of these bad boys after they were warm enough to hyperflash and they were indeed hot to the touch.

Since I didn't want to hack into my wiring harness to add aftermarket resistors (to prevent hyperflash), I decided to go with VLED's V6 Trition Extreme bulbs. I had regular V6 Tritions in my Tacoma for 4 years and they were flawless. Both models use a very nicely made in-line resistor to quell hyperflash and the resistor is where all the heat is generated. This means the bulb itself does not get hot. The downside? V6 Tritons are pretty pricey.

So, here's what I've learned. If you want LED turn signals, the lower priced (and thus lower powered) ones will require resistors to avoid hyperflash. These resistors required hacking into your factory harness - which I'm not willing to do. The better / brighter bulbs will generate more heat and how the manufacturer manages that heat is important. Hope that helps.

 

Just grab the MESO Total Tail Stage 1's or the VLED's tail light conversion kit. Save yourself the trouble and add functionality and safety.

 

I purchased bulbs that had a resister after the plug into the factory wiring but before the bulb, and they have worked flawlessly

 

Taco23Trl - What bulbs did you purchase?

 

Here are the bulbs I got