Hello, the property management said that the light bulbs are consumables, and I need to buy them myself or share them among the three households on our floor. Is this reasonable?

Are you talking about your own home or public places? If you are at home, you can buy your own light bulb and call the property to help install it. If it is a public part, tell them that it will usually be solved. Our property is inspected every day, and problems are found to be followed up in time. If you are satisfied, add me as the best answer.