Sure you can but once you're done how long do you think it will be before another one burns out? Cut your losses. Depending on the model you can rip out the heatsinks and fans and drivers, find a COB that works well with the LED drivers it has and slap them all together to build a better light than what you started with. I mean if you can de-solder and re-solder LEDs, you can build a DIY COB easy-peasy.