Meizhi and Viparspectra are two well established grow light manufacturers who are known to produce some of the best budget friendly, value from money grow lights. Viparspectra in particular seems to have exploded in popularity recently, with many experienced growing ( including myself ) recommending their lights.
However, In this article, I'm going to compare Viparspectra best selling 600w LED grow light with Meizhi 600w equivalent.
Which light will come out on top? Read on to find out.
Meizhi vs Viparspectra - Quick Comparison
First, let's have a look at these two lights specs side by side...
Ok, so as you can see from the table above, it's a very tight race between these two!
Both lights have the same actual wattage, with the Meizhi consuming marginally more electricity. However, that extra electricity draw could explain the additional PAR output that Meizhi manages to achieve over the Viparspectra, which is very impressive. However, the Viparspectra light offer a very generous warranty compared the the Meizhi which I think is a big plug point for it.
Unfortunately, right now, I'm still undecided which is better. I'm going to need to go into this in more detail!
Read on for the pros and cons of both lights, as well as a detailed comparison of features
Viparspectra 600w - Pros & Cons
What we like
What I don't like:
Meizhi 600w - Pros & Cons
What we like
What I don't like:
In this section, I'll take a closer look at each of the key features that these two lights offer and see which one comes out as the winner.
Both of the lights have the same actual wattage. I really like that they are marketed as 600watt grow lights and actually produce 600watts of power.
You should never grow more than 8 plants under one grow light.
TIP: For optimal growth, your plants should get roughly 50w of power per square meter, but you should never grow more than 8 plants under one grow light.
PAR ( measured in μmol/m2/s ) is the light that your plant actually absorbs from your lights wavelengths and uses to grow ( photosynthesis ). So, it's pretty important!
Here's the optimal ranges of PAR for your plants at different stages of their life:
Between 200-400 (μmol/m2/s) Best range for your the seedling stage
Between 400-600 (μmol/m2/s) Best range for your plants in the vegetation stage
Between 600-900 (μmol/m2/s) Best range for when your plant is starting to flower.
Viparspectra outputs 703 umols at 18 inches - this is usually how far away your light would be if your plants were flowering. That is a very respectable PAR out and right in the middle of the perfect range of PAR required at that stage.
Meizhi, however, outputs an incredible 774 umols at 18 inches. More PAR = more food for your plants, so Meizhi wins this one.
A good full spectrum LED grow light will provide your plants with every wavelength they need for optimal growth and yields. Grow lights output a few differnt colors of light, but here are the key things we're looking for:
Blue light ( 440-470nm ) Blue light between this range simulates summer sun and is perfect for creating leaf growth during the seedling and vegetation stage
Red light ( 640-660nm ) Red light between this range simulates autumnal sun and is the optimal range for causing photosynthesis - perfect for the flowering stage.
UV ( Ultraviolet ) UV wavelengths cause cannabis plants to go into defence mode, which produces more THC
IR ( infrared ) IR wavelengths are thought to penetrate deeper into your plants and lead to larger leaf size ( although this is heavily debated in the cannabis community )
The Viparspectra and Meizhi both have the perfect output of red and blue wavelenghts for the veg and flowering stages. As mentioned above, these lights could both be improved with the addition of some UV lights for the flowering stage.
Both lights have similar dimensions and have the same max coverage of 3ft x 3ft.
The Viparspectra consumes slightly less electricity (269watts ) compared to the Meizhi at 279watts - 10 watts isn't an awful lot though.
Ok, let's see how these two lights will affect our electricity bill every month.
Here's the equation I'll be using to work this out:
Cost of Electricity x Number of Hours On x (Watts / 1000) = Total Cost
The current average cost of electricity in the USA is $0.12KW/h. If I were vegging, I'd have the lights on for 18 hours every day ( 540 hours every month )
Based on these values, the Viparspectra would cost $17.43 to run every month and the Meizhi would cost $18.07 every month.
WINNER: VIPARSPECTRA ...just
For me, a good warranty is essential when buying a grow light. I bought a grow light a few years back that suddenly stopped turning on after 2 months. It didn't have a warranty and the company I bought it from didn't reply to my emails. Needless to say, i was not happy.
Viparspectra blows the Meizhi out of the water here with a 3 year warranty. Meizhi should really up their game here.
Ok, so after delving a little deeper into the features of these two grow lights, I've finally decided which I would choose.
I would choose the Viparspectra over the Meizhi. Although the Viparspectra offers slightly less PAR output than the Meizhi, it's still in the right range for optimal results. The Viparspectra just pips the Meizhi for me due to its 3 year warranty and the peace of mind it provides.
I hope you found this review useful when deciding between these two lights. Let me know what grow light you decided to go for in the comments?
Last update on 2018-09-18 / Affiliate links / Images from Amazon Product Advertising API