| I recently updated my reverse lights to some made with Cree LEDs that I found at pfranleds.com. Here's the original thread: Cree LED Reverse Lights Here are the comparo pics... Stock (1/8 @ F3.5):
 Cree LEDs (1/13 @ F4.0):

What really shows here is the blooming on the top center and the top corners, which is not exactly where you want the light to go (vs lower corners). You can also pick out the shadow of the middle bar in the Z's lens housing, which is a MAJOR DESIGN FLAW in my opinion by allowing form over function. Wish there was a way to fix all those design issues. The only good solution (working within the external lens design) is to re-aim the housing on the inside so the Cree LED gets a clean shot to the lower corners of the pattern. Just a thought....
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