if you use the error modules like the ones i have posted they do not create heat, if you use the resistor type ones those do create heat.
i would never use the resistor types myself.
the ones to use look like this
1 Pair H7LED Car Headlight Bulb Canbus Decoders Error Free Anti Flicker Resistor Flash Canceller. 1 Pair XLED Car Headlight Bulb Canbus Decoders. -led canbus decoder with effective interference absorbing circuit;.
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they have a little plastic box in the middle and in the zb you may need two of them connected together on one or both sides of the low beam so order 2 sets(4 pcs in total).
high beam does not need anything.
if you ever decide to have the error message removed then it will cost around 30 bucks and it works perfectly.
mine have been running for well over a year in the zb with these $35 night eye leds.
Our Novsight Tech's are here to serve you. LED Headlight Globes. Color temperature: 6500K White. No Blinding Oncoming Vehicles. Car LED Headlight. Q4: Will this bulb give error code or tend to flicker,or neither side lighting up, or work inconsistantly?.
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i had one nighteye led blow because the set had been used in previous vehicles for about 4 years and when it did blow i had the check lamp error popup so using the combination i have it still alerts me to a blown bulb.