I had to replace a 30 year old 'service' lightbulb from Japan. Solid, heavy, and well made, this thing eventually broke after decades of use. I replaced it with this Philips bulb. Right out of the box it looks flimsy; The plastic knot holding the 4 pins is too loose (only the bulb's wires hold it in place) and the cheap plastic tab holding the two together is loose so you can easily rip it apart with your hands. The plastic cap does not completely cover the two ends of the tube. I've read other