I should have mentioned, the housing is cast aluminum, and very brittle. I cracked one of the covers while drilling it. use a little bit of oil and drill slow, don't push too hard
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tnx gill blue. i didn't know that....
Maybe i will repair those. It's very easy. I saw video on youtube how to change COB light and that black box thing on back. I don't know how to call it in english. I'm still thinking. Because LED give best shine efect. And because i like to work with eletricity.