67 and 69 Barracuda back-up light
I received my first samples of 3D metal printed housings. Designed from photos only. Now that I have a real one to look at I have modified the design accordingly.
Stainless on the left
AL on the right
My first round of testing is done.
Real chrome bezel, real glass lens, real OEM gasket, so no heat leakage meaning all the heat produced by the bulb has to be radiated away by the bulb holder and Chrome Bezel
After 20 minutes the AL body never got above 208 deg F (with an indoor ambient of 74 deg) there are no signs of stress to the parts (there was some black goop on the gasket that transferred to the AL housing)
After 5 minutes the SS body was at 209 deg F (with an indoor ambient of 74 deg)
at 10 minutes the housing was at 253 deg
at 15 and 20 minutes it leveled out at 262 deg
At first I was fascinated by the quick temp rise of the SS but then realized it makes sense as the AL can radiate heat away faster than the SS can.
The AL also made the chrome bezel hotter faster. The <120, 120 and >120 are "can I touch the bezel for a sustained time" the average human hand can touch 120 deg F continuously, its uncomfortable but will not burn you for a few minutes. My infrared temp gun (as all infrared temp guns are) is useless on reflective surfaces like the chrome bezel, so I used the 120deg rule to estimate how hot it was getting.
I will be testing the OEM housing next and update the results.
* 1.66 oz represents the OEM unit, with 0.34 oz subtracted for the weight of a bulb socket and wiring, but I suspect the steel one on the OEM holder weighs more than the AL aftermarket socket
1.90 oz = OEM holder, bulb socket and wiring
I received my first samples of 3D metal printed housings. Designed from photos only. Now that I have a real one to look at I have modified the design accordingly.
Stainless on the left
AL on the right
My first round of testing is done.
Real chrome bezel, real glass lens, real OEM gasket, so no heat leakage meaning all the heat produced by the bulb has to be radiated away by the bulb holder and Chrome Bezel
After 20 minutes the AL body never got above 208 deg F (with an indoor ambient of 74 deg) there are no signs of stress to the parts (there was some black goop on the gasket that transferred to the AL housing)
After 5 minutes the SS body was at 209 deg F (with an indoor ambient of 74 deg)
at 10 minutes the housing was at 253 deg
at 15 and 20 minutes it leveled out at 262 deg
At first I was fascinated by the quick temp rise of the SS but then realized it makes sense as the AL can radiate heat away faster than the SS can.
The AL also made the chrome bezel hotter faster. The <120, 120 and >120 are "can I touch the bezel for a sustained time" the average human hand can touch 120 deg F continuously, its uncomfortable but will not burn you for a few minutes. My infrared temp gun (as all infrared temp guns are) is useless on reflective surfaces like the chrome bezel, so I used the 120deg rule to estimate how hot it was getting.
I will be testing the OEM housing next and update the results.
* 1.66 oz represents the OEM unit, with 0.34 oz subtracted for the weight of a bulb socket and wiring, but I suspect the steel one on the OEM holder weighs more than the AL aftermarket socket
1.90 oz = OEM holder, bulb socket and wiring
