LTL Master 16 Lighting Controller MLC

LTL Master 16 Lighting Relay Controller – Professional-Grade Control for Up to 16 Grow Lights

When it comes to powering your grow room, safety and control are everything. The LTL Master 16 Lighting Relay was built for serious indoor gardeners who demand efficiency, reliability, and protection. Designed to handle up to 16 HID grow lights, this professional-grade controller distributes power through four independent 30-amp control banks using a single feed wire—simplifying installation while reducing circuit load stress.

Need to split your grow space? No problem. The Master 16 comes equipped with (2) 120V trigger cables, giving you the flexibility to run either a single 16-light room or two 8-light rooms with separate schedules. Each bank can be turned on or off as needed, and built-in delay timers allow you to stagger light start-up, preventing power surges that can trip breakers or damage equipment.

Durable and dependable, this relay box features a sleek, metal housing that’s built to withstand humid grow room conditions and mount cleanly wherever you need it.

Grow Light Timer Tips & Tricks:

Optimize Light Cycles

• Vegetative Stage: Use an 18/6 light schedule to simulate long summer days.
• Flowering Stage: Switch to 12/12 for optimal bloom development in photoperiod plants.

Stagger Start Times
Use the Master 16’s built-in delay timers to power up one control bank at a time. This reduces amperage spikes and helps avoid electrical issues—especially critical in high-load systems.

Use Digital Timers with Trigger Cables
Pair your 120V trigger cables with high-quality, programmable timers to precisely control light cycles. Double-check AM/PM settings to avoid accidental light leaks.

Have a Backup Plan
Consider a battery-backed timer or smart outlet for peace of mind during outages or power flickers.

Key Features:

• Controls up to 16 HID grow lights via 4 independent banks
• (2) 120V trigger cables for dual-room or split-schedule operation
• Built-in delay timers for staggered light ignition
• Industrial-grade metal housing for durability
• Safely distributes power from one feed wire across all banks
• Ideal for professional and large-scale grow rooms

⚠️ Always consult a licensed electrician for installation of high-amperage devices to ensure compliance and safety.