Tom, just a question: what are the 4x1157 Red, 2x1157 Amber and 2x1156 Amber used for on your Subaru?
Sorry for the delayed response ... was on vacation ... The four red 1157's
are for the rear parking/brake lights. The two amber 1157's
are for the front parking/turn signals. The two amber 1156's
are for the rear turn signals. All of these are 30 SMD 5050 LEDs. (Keep in mind this is for a 1997 Subaru. 2013 Subaru's probably use different lights.)
FYI, in case someone reading this doesn't know, SMD = surface mount device, "5050" refers to the size of the LEDs and 30 is the number of LEDs on the bulb. The 5050's are brighter than the smaller LEDs
. Don't make the same mistake I did thinking that more of the little ones
would be brighter (they're not). AND don't get all white thinking they'll be brighter. It's better to get the same color LED as the lens it will go behind, ie, red LED for red brake lens. Stef's tests proved this.
As I said before, one set got super hot and started smoking, another one, currently in use, the turn signal only works sometimes (I'll probably get a ticket because of that one). And most importantly, all of these are NOT as bright as the original bulbs and are harder to see in the daylight. Because of this and general reliability issues, I'm considering going back to the original bulbs. It's been frustrating. If anyone is considering going the china/ebay route, yes you'll save money, but I would suggest you wait for Stef's LEDs. The money saved has not been worth the hassle.
The two rear reverse lights are 1156's as well. I recently installed these 7w LEDs
. They're not too bad, just slightly better than the stock bulbs. But I have no idea how hot they are getting while in use, which luckily is usually less than a minute or two. I'm wondering if your new white LEDs might work for this application, where most of the light needs to be directed straight back?
Other LEDs I'm using are to replace 168/194 bulbs: two whites for the license plate, two reds for the side markers, and one white each for the glove box and rear cargo area. For these I chose 5 SMD 5050 LEDs
. In all cases these 168/194 replacements are larger than the bulbs they replace and just barely fit. These do a fairly good job, but I would prefer a warm-white tint vs. the cool/blue white these are.
I have yet to find LEDs bright enough to replace the 168 bulbs used in the front dome light and map lights. I've tried several.
PS: Congratulations on the results of your heat tests. Very impressive design.