VIPARSPECTRA Reflector-Series 450W LED Grow Light Review

VIPARSPECTRA Reflector-Series 450W LED Grow Light Review












420KNOWHOW is bringing you a detailed look at modern LED grow lights available in 2020. The Viparspectra Reflector Series 450W review is a comprehensive analysis of one of the smaller LED light system, to see how it stacks up against the competition.

The Viparspectra 450W has been created with the hobbyist in mind. It’s a small unit that won’t drain the electricity but still has enough power to grow large buds. As the name suggests, the 450W is meant to replace a 450W HID system, using less electricity and providing more photosynthetic light.


Coverage can sometimes be a tricky measurement in terms of visualising how many plants you can grow. The truth is, plant sizes vary depending on the strain, the stages of growth and the conditions that you provide. I believe that a single plant needs a minimum of one square foot to cover all the stages of its growth.

I said at the beginning of this piece that this panel caters mainly for hobbyists, and beginners. The coverage, therefore, is relatively small. With the veg switch down you get a optimal coverage of 3.5 by 3.5 foot. During the bloom stage that coverage scales down to a modest 2.5 by 2.5 foot.

If I was starting out on a project of say, 4 healthy plants, I’d place the Viparspectra inside a 3 by 3 grow tent and use it as the sole light source from beginning to the end. The 90 degree focusing lenses really come into their own on this kind of project when the canopy isn’t too large. You can use them to direct light into the right places and get a decent yield in return.

Strength and Efficiency

The Viparspectra 450W is impressive, offering a healthy glow that your plants will love. Furthermore, it only uses 200W and offers more than double the equivalent output. Hanging the lights 24 inches above your plants will provide more than enough light to help them flourish, without burning a hole in your pocket.


For a light this size you’re pretty much confined to small scale projects. I’ve added a few extra points simply for the daisy chain feature that allows you to link multiple units with one cable.


The Viparspectra Reflector series offer a surprisingly wide spectrum of light for a relatively low cost. The initial outlay is small plus it won’t make in a dent in your electric bill. Overall, it’s an excellent piece of equipment at a very low price.

Additional Info

The LEDs are expected to last around 100,000 hours. A 3-year warranty that really takes the risk out of the purchase.

What I like

The daisy-chain feature is a lovely touch that means this unit could play a role in some larger projects. I like the red to blue light bands for the bloom and veg stages which will really help to grow some nice buds.

What I don’t like

The big advantage of small units is that you can fit them into cupboards, drawers or corners. The Viparspectra 400 needs a larger berth of 24 inches. It’s worth measuring your grow space before making a purchase.

Bottom line?

The Viparspectra 450W is a small panel with a big attitude. Lots of healthy light, in-built cooling system and a 3-year warranty make choosing your first LED grow light easy. Strong enough to perform and small enough not to wreck your bank account. An ideal option for beginners and hobbyists alike.