TC420 Programmable LED Time Controller — 24Hour Dimming Driver, 5Channel Output, Max 20A, DC12V/24V Input Overview The TC420 is a compact, programmable LED time controller designed to automate 24hour dimming schedules for LED lighting systems. With five independent channels and support for DC 12V or 24V supplies, it provides flexible multizone control and reliable power handling up to a total of 20A. Use the TC420 to save energy, streamline daily lighting routines, and create consistent lighting scenes without manual intervention. Key benefits Automates daily lighting schedules: set repeatable 24hour dimming programs to match business hours, sunrise/sunset, or event timing. Multizone control: five independent outputs let you control separate fixtures or color zones from a single device. Reduces energy use and maintenance: dimming and scheduled on/off reduces run time and extends LED life. Simplifies installation and operation: one compact controller replaces multiple timers and manual switches. Reliable power handling: supports LED systems driven by DC12V or DC24V with a combined output capacity up to 20A. Main features Model: TC420 Control type: Programmable 24hour dimming scheduler Outputs: 5 independent channels Maximum output current: 20A (total) Input voltage: DC 12V or DC 24V Intended for LED lighting systems that operate on 12V or 24V DC Compatibility and performance Compatible with common LED strip lights, LED modules and other lowvoltage LED fixtures that accept DC12V or DC24V input. Designed to manage multiple loads across five channels; distribute loads so the total current does not exceed 20A. Provides consistent, repeatable dimming behavior for daily schedules; ideal where predictable lighting transitions are required. Physical and build notes Compact form factor suitable for mounting inside control cabinets or near LED power supplies (specific dimensions not provided). Built to integrate with standard lowvoltage LED installations and wiring practices. Durable housing appropriate for indoor installations; follow local electrical codes for mounting and enclosure use. Applications (use cases) Retail and commercial storefronts: schedule lights to turn on bright before opening, dim during store hours for display effects, and turn off after closing to save energy without manual intervention. Architectural and landscape accent lighting: automate evening dimming profiles for façade or pathway lighting to match sunset/sunrise times or to create a gradual fade for improved aesthetics and reduced light pollution. Signage and seasonal displays: control multiple color or zone channels on a daily schedule to ensure consistent appearance and to limit run time for longer component life. Installation and operation guidance Connect a DC 12V or DC 24V power supply to the input terminals and wire LED loads to the five outputs. Verify polarities before powering on. Ensure the combined current draw of all connected channels does not exceed the stated 20A maximum. Program the 24hour dimming schedules according to your timing and scene needs. Follow any included programming instructions for setting channels and time blocks. For safe installation, disconnect power while wiring and use appropriate wire gauge and circuit protection sized for your total current. Why choose TC420 The TC420 delivers straightforward, programmable daily dimming in a single compact unit with five outputs and support for both 12V and 24V LED systems. It is a practical choice when you need dependable automation for multizone LED installations while keeping wiring and control centralized. Technical reminder Model: TC420 Inputs: DC12V / DC24V Outputs: 5 channels Total maximum current: 20A For reliable scheduled dimming and multichannel LED control in lowvoltage installations, the TC420 provides a practical, energysaving solution.