MASTER TL5 HO with 16 mm tube diameter offers particularly high luminous flux. The TL5 HO lamp is optimized for applications where high luminous flux is required and offers excellent luminous flux stability and color rendering over its lifetime. Notes: It is very unlikely that the glass breakage of a lamp will have a negative impact on your health. If glass breaks, ventilate the room for 30 minutes and remove the splinters using gloves if possible. Place the splinters in a sealable plastic bag and take them to the recycling center for recycling. Do not use a vacuum cleaner.