Quick Equip Scope Light. This scope light is an easy to use light attachment for your stethoscope. Fits most stethoscopes with a snap. Just attach the unit to your chestpiece and activate the bright LED light. The QuickEquip light is most compatible with the following stethoscope models: 121, 126, 124, 134, 108, & 125. Each unit shipped in attractive hanging retail packaging. Royal.