
Don't expect them to be ready to go out of the box. You'll need to use something like a flathead screwdriver to bend the metal contacts, especially the very bottom ones that touch the center of the bulb you're screwing in, away from the bottom of the case so they actually reach the bottom of contact bulbs. I also tweaked the sides a bit as they seemed too close to the body wall to be effective. Not that one or two of those four blocks need this tweak. EACH OF THEM WAS SHIPPED WITH THIS DEFECT. The fact that they were functional after this adjustment is the only reason this review doesn't have a 1 star. Good seller. If you ship a product like this and expect your customers to finish the manufacturer's job, you're going to look REALLY bad. -_-

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