9 Best Digital Timers for Growing Weed in 2026

Updated for 2026 — This article has been reviewed and updated with the latest recommendations.

A reliable timer is the backbone of any indoor grow. Your light schedule controls when your plants vegetate and when they flower, so a timer that drifts, sticks, or fails can ruin an entire crop. Here are the nine best timers for cannabis growers in 2026, from basic mechanical models to smart controllers.

Timer Comparison

1. BN-LINK Digital Timer - Best Overall

The BN-LINK is a simple, reliable digital timer with two on/off programs per day and a battery backup that remembers your schedule during power outages. The LCD display is easy to read, programming takes about 30 seconds, and the timer switches loads cleanly without the clicking and buzzing of mechanical models.

At $12, it is the timer most experienced growers recommend to beginners. Buy two: one for lights, one for your exhaust fan.

2. AC Infinity Controller 69 - Best Smart Controller

The Controller 69 is more than a timer. It is a full environmental controller that manages lights, fans, and humidifiers based on temperature, humidity, and scheduling. Four independently programmable outlets, sunrise/sunset simulation, and app control via Bluetooth make it the most capable device on this list.

At $99, it replaces multiple timers and controllers with a single unit. If you run AC Infinity fans, the integration is seamless. This is the controller that turns a basic tent into a fully automated grow environment.

3. Century 24-Hour Mechanical - Best Budget

The Century mechanical timer has been a grow room staple for over a decade. Push the pins to set on/off times in 15-minute increments. No programming, no batteries, no displays to fail. It just works. The 15-amp rating handles any grow light.

At $8, it is cheap enough to buy a handful for different circuits. The only downside is the audible clicking when it switches, which some growers find annoying in a bedroom setup.

4. Titan Controls Apollo 8 - Best Dual Outlet

The Apollo 8 gives you two independently timed outlets in one unit. Run your lights on one outlet and your CO2 or supplemental lighting on the other, each with their own schedule. The digital display is straightforward, and the 15-amp rating per outlet means each can handle a full-sized grow light.

At $35, it is a solid choice for growers who need more scheduling flexibility than a single-outlet timer provides.

5. Inkbird Smart Plug - Best WiFi Option

If you want to monitor and control your light schedule from your phone, the Inkbird WiFi smart plug works with their app and supports scheduling, countdown timers, and remote on/off control. No hub required. At $18, it is an affordable way to add smart home functionality to your grow.

Timer Tips for Cannabis Growing

• Vegetative schedule: 18 hours on, 6 hours off (18/6) is standard for veg
• Flowering schedule: 12 hours on, 12 hours off (12/12) triggers and maintains flowering
• Consistency is critical: Even brief light interruptions during the dark period can stress plants and cause hermaphroditism
• Battery backup: Choose a timer with battery backup to maintain the schedule during power outages
• Amp rating: Make sure your timer is rated for the total wattage of everything plugged into it

Mechanical vs. Digital

Mechanical timers are cheaper and more intuitive but less precise (15-minute increments vs. 1-minute for digital). They also click audibly when switching. Digital timers are quieter, more accurate, and often include battery backup. For most growers, a $12 digital timer is the sweet spot.

Final Verdict

The BN-LINK Digital Timer at $12 is the best timer for most growers. Simple, reliable, and cheap. If you want full automation with environmental sensing, the AC Infinity Controller 69 at $99 is the upgrade that replaces everything else. And for the absolute minimum investment, the Century Mechanical at $8 gets the job done.

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