Toshiba Service Replacement Lamp TDP-T100U and TDP-T99U Projectors You never know when your service replacement lamp might fail, so it's smart to carry a back-up on business trips or keep a spare one at your presentation facility. This service replacement lamp from Toshiba is a lifesaver if your bulb burns out. This durable service replacement lamp will give you hundreds of hours of excellent, crisp, clear brightness.