Mars Hydro Digital Grow Room Timer - It’s not flashy. It doesn’t hum, glow, or spin. It just quietly gets the job done, every single day, with Swiss-watch reliability.

• 20 On / Off Settings
• Daily Repeat 
• Free UK Delivery
• Save Energy. Save Money
• 7 Day Program
• UK Plug
• Made For Grow Rooms

Precision Power for Your Indoor Jungle.

Indoor horticulture is no longer a hobby. It’s a lifestyle, a science, and occasionally, a warzone between man and mildew. At the heart of every successful grow room lies one thing: absolute, unshakable control. Enter the Mars Hydro Digital Grow Room Timer – the unsung hero of your grow tent, your best mate in scheduling, and the secret weapon for anyone who demands their grow lights fire with military punctuality.

Crafted by the obsessive minds at Mars Hydro – the same people who brought you grow lights engineered by photosynthesis fanatics – this device isn't just a plug-and-play timer. It's a smart, digital, multi-programme control hub for your entire grow space. And it's about to make the phrase “I forgot to turn the lights on” go extinct.

Built for Precision, Engineered for Growers.

The Mars Hydro Digital Grow Room Timer comes with a grounded outlet that supports most standard electrical devices (we're talking grow lights, humidifiers, heating systems, extraction fans - you name it). It runs on AC100-240V at 50/60Hz, and plugs directly into any EU socket. Its form is compact, with a digital LCD screen, intuitive button layout, and enough scheduling intelligence to rival a PA with OCD.

With 20 separate ON/OFF programs, this timer lets you create elaborate lighting schemes tailored to your crop’s life cycle. Want your lights on for 16 hours Monday through Friday, but only 12 on the weekends? No problem. Need your humidifier to run for 45 minutes every third hour, precisely on the hour? Done. It’s not just programmable. It’s programmable with precision — down to the minute, and yes, even the second when setting the local time.

Unlike those mechanical timers that click like an old kitchen egg-timer and can barely manage one cycle a day, this is a 7-day programmable beast. Set it once, forget it forever – or until you want to tweak it with its handy repeat function.

Control Is Everything. 

Grow lights aren’t decorative. They're synthetic suns. And just like real sunlight, they need to rise and set with consistency. The Mars Hydro Digital Grow Room Timer ensures your grow lights follow strict photoperiods, critical for regulating flowering schedules and encouraging maximum resin production. Whether you're simulating a tropical 18/6 light cycle or orchestrating a finely tuned flowering transition, this timer delivers the consistency plants crave and growers rely on.

Photosensitive plants use light and darkness as signals to grow, stretch, and ultimately bloom. A minute too long in the light at the wrong phase and you could risk delayed flowering. A minute too short, and you lose out on biomass. That’s why 60-second precision matters. This isn’t about convenience. It’s about performance. And with a timer that doesn’t drift, doesn’t blink, and doesn’t fail, your garden gets exactly what it needs.

Plug & Grow.

Let’s face it - grow rooms can be energy hogs. Left unchecked, they’ll rack up utility bills that’ll make your eyes water. The Mars Hydro Digital Grow Room Timer gives you direct control over when and how long your devices run. That means lights off during peak electricity pricing. Fans timed to run only when humidity hits a spike. Heaters turned off the minute the ambient temp stabilizes.

The result? Lower bills. Smaller carbon footprint. Longer lifespan for your gear. And best of all, total peace of mind. Going on holiday? The vacation security mode means lights can turn on and off even when you're gone, deterring unwanted attention while keeping your grow schedule intact.

Smart Simplicity.

Programming is a doddle. With the press of “CLOCK” and “SEC,” you can lock in local time to the second. Press “PROG” to set up your light cycle. Repeat for as many ON/OFF sets as you need - up to 20 in total. LED pilot lights show power status at a glance. And if you ever want to start fresh, there's a reset button right there on the front. Simple, no app required, no WiFi nonsense.

the Mars Hydro Digital Grow Room Timer is the kind of tool you didn’t know you needed - until your plants thank you for it. It’s not flashy. It doesn’t hum, glow, or spin. It just quietly gets the job done, every single day, with Swiss-watch reliability.

If you’re serious about indoor growing, this isn’t optional. It’s essential.