Do you think that there is something wrong with your projector? Many offices do keep projectors because they want to use that during conference meetings and even when they want to have some training sessions. However, sometimes there are problems with the projector bulbs and therefore you always need to keep some stock of the bulbs that you can quickly change when things go wrong and you want to make quick fix of the problem. You can find these bulbs on the internet as there are various sites that do keep projector components. You can buy it in bulk as well if you are buying it for a large company as there would be many projectors.