For the price, don't expect the same quality as the big brands. Although the bulbs arrived in perfect condition, one of them burned out when installed in a recessed glass holder. The glass portion of the lamp was separating from the metal base, so I had to pry it out of the socket. The second attempt worked, but the threads on the ends of the lamp won't screw into the standard socket. It's like the threads have loosened a little, so you have to be extra careful when screwing it in.