Frequently Asked Questions


This will depend on the type of plant you are growing and on how much natural light your plants are getting. As a rough rule of thumb to effectively mimic the sun's natural light it should be on for 8- 16 hours a day however if there is already a lot of natural light, it can be used for just a few hours a day to top up the light and keep the plant thriving.

Even plants need a good nights sleep! Make sure not to run the light for longer than 16 hours a day so your plants can rest. 

Common signs your plants are not getting enough light:

  • Slow or no growth
  • Lighter leaf colour
  • Smaller new leaves
  • Older leaves dying

The Pianta Grow Light will ensure they have enough light. 

The Light should be pointing directly at your plants. Be careful not to keep the light too close as it can burn the plant, between 0.3m - 1m is a good distance to start with, then move as required. Keep an eye on your plants as they will give you feedback.

Refer to our blog for more guidance!

How close to keep your grow lights?

Pianta fits in to any traditional E27 Screw fitting, and now also bayonet B22 fittings! so you can choose a light fitting to match your style, easy installation, just screw it in and switch it on! 

And check out our Bundles page to see our light fittings that perfectly pair with the Pianta.

Yes! We offer a 90 Day Risk Free Trial on our products. If you're not completely happy with them we will refund you the full amount, including delivery charges, and provide a return label at our cost.

We also offer a two year warranty on the Pianta grow light bulb for peace of mind, we stand behind our products.

If you have any issues with the product, feel free to contact us, we are here to help! Just message us at

Orders are shipped using Royal Mail, DPD or Parcelforce. Orders will take between 2 and 4 days. With express delivery it will take between 1 and 3 days. We do not deliver on Sundays.

We are currently offering free shipping on orders over £40!

Email us at with more questions or feedback.