LED vs. HPS Grow Lights - Cost Breakdown!

Everyone knows LED lights are cheap to run. But how cheap is cheap? Can you save money by using them?

Actually, yes.

We did the maths, and found you’ll save up to £463 a year by switching from an HPS to a Telos LED light!

We stock an increasing range led grow lights - take a look through a range of products from Telos, Gavita, Maxibright and more.

Within 2 years your LED pays for itself. After that, the savings keep spiralling!

You’ll actually save even more in summer – LEDs don’t emit much heat, so extraction costs drop.

Just make sure you pick a good LED. Cheap ones don’t emit enough PAR light, and don't have enough power to penetrate through the canopy! The problems you get can be so bad that you lose more in yield than you save in running costs.

• Save up to £299 a year over average 600W magnetic HPS
• Save up to £284 a year over average 600W digital HPS
• Save up to £312 a year over average premium 750W digital HPS
• Save up to £463 a year over average premium 1,000W digital HPS

With a Telos LED, you get at least 2.1umol per W. That means you don’t have to go as high on your wattage to cover the same area.

We’d recommend making these swaps:

And now for the maths.

All costs have been based on:

• 4 x cycles (504 hours veg + 672 hours flowering)
• 14p per k/W energy
• Recommended lamp + reflector swaps

*energy cost calculations @ 14p per kW

4 full cycles of 504 hours veg + 672 hours flowering = 4,704 hours a year

X total light power draw = total watts used a year

/1000 = total kW per year

X 0.14 = cost per year!