Sterling-Sterlco T563-02-0000 1" R/A Standard Bulb 60/140°F 56-T

The 56-T-1" 60/140F R/A Std Bulb, also known as T563-02-0000, is a standard replacement bulb intended exclusively for Sterling-Sterlco HVAC systems. It's a durable glass lightbulb with a filament inside that heats up and glows when electricity flows through it. Indicator lights or control panels of different Sterling-Sterlco HVAC machines sometimes employ this bulb to provide visual signals on the equipment's operating state. Although the lightbulb itself has no direct effect on the HVAC system's primary functions, it is essential for user experience and troubleshooting. When indicator lights are visible, users can keep an eye on the status of their system, spot possible problems early, and take appropriate action.