Output level: High level roughly follows the supply voltage, providing a straightforward signal reference. Electrical specs - Supply voltage: 3-5.5 V - Standby current: 0.02 mA (light off) - Lamp housing current: 1.8 mA Key benefits - Low standby drain enables longer battery life in idle or off states. - Wide supply compatibility with common 3-5.5 V systems. - High level output that tracks the supply for easy interfacing and wiring. - Adequate lamp current (1.8 mA) suitable for visible indicators without heavy power use. Use scenarios - Indicator driver in battery powered handheld devices or small appliances. - Simple high level output partner for microcontroller projects needing a visible indicator. - Portable electronics such as wearables or compact gadgets requiring low standby consumption and reliable lamp operation.