I had tested/used six sets of 1157 LED clusters for the 308 DRLs. All of them ended up as electronic garbage. Click HERE for more info.
The only reason for the failure is that those 1157 LED clusters do not have current limiting circuit hence not suitable for extended use as DRLs.
Finally I found 1157 5W Cree Q5 LED on eBay. The design makes it stand out from the rest.
The Projector bulb comes with double lens for optimum optics.
... and make it ngam with the retrofit HID projector headlight.
The 5W Cree Q5 LED brightness is comparable with the stock 21W tungsten-filament bulb even under bright sunlight .
Picture : comparison amongst the stock 1157 Tungsten-filament DRL, the new 5W Cree Q5 Projector LED and the Merc W212-like LED strips.
Picture : comparison between super bright LED and the new 5W Cree Q5 Projector LED 
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