yellowneck86

I went to pepboys and picked up a pair of Pilot Automotive hyper white bulbs to replace my OEM bulbs. While searching the forum for installation how to's I read that people were melting their housings due to the aftermarket bulbs they were using were to hot. Does anyone know how many kelvins these Pilots producing? It doesn't say on the package beside 12v/45w.

danzcool

"kelvins" is the white balance and has nothing to do with physical heat temperature, the watts are what you want to compare.

Art161

I don't think the wattage would give you a definitive answer in this case. The wattage would be useful to let you know if your electrical system could handle the load, but I don't think it would give an indication of the heat. Some bulbs have the same wattage rating, but differ in brightness from other bulbs. It depends on the material used for the filament. Usually, if bulb A has the same wattage as bulb B, but bulb A gives a brighter light (and presumably generates more heat), it will burn out faster. I don't know how you would calculate the heat generated by a specific bulb.

Nuke

When comparing a halogen to a halogen, wattage is adequate for heat comparisons. Although for a fog light, a hyper white is the wrong direction (in Kelvin) if you want true functional fog lights. But the hyper whites may look pretty and attract a few cops if you're one of those... people... that has their fogs on in anything but dark, poor visibility weather. Just my 2 cents.

yellowneck86

Never mind, I returned the poverty beam bulbs back to pepboys. I'll stick with sylvania silver stars. I was just trying to match the fog lights with the stock HID's.

Cal26Stang

I bought some LED fogs on ebay that worked great, you might give that a try

157dB

12V 45W is ialmost the OEM wattage of 12V 42W.
Three extra watts of heat will not 'melt' the housing.
I guarantee it.

Personally I like the 13.8V 45W bulbs as they tend to last longer.

Goldenpony

I have had Hoen Endurance fog bulbs (yellow) installed for several years. No problems here. Stock wattage.

Nuke

I've been running the Hella Optilux Extreme Yellow XY bulbs in a 9145/H10 which are 42 watts. Great bad-weather performance as a result of having a temp of 2500K.