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Reflectors

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Reflectors

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Reflectors

About 50% of the light emitted by your grow lamp hits your reflector.

It’s important that you pick the right one. One that’ll angle as much light as possible back down to your plant. One that suits the shape and size of your tent.

Take a look at our range of open and closed end reflectors. There are plenty for you to choose from - all are CE certified and designed to give you great results.

If you need help choosing a reflector, see the questions and answers below. Otherwise, call 0333 003 22 96.

Where do I position my reflector?

Most grow tents are square or can be split into squares. One reflector should be positioned in the centre of each square.

If your grow tent can’t be split into squares, split it into rectangles instead and do the same.

The only exception is advanced Gavita lighting systems – visit your local store for a free custom layout.

How do I know what shape to go for?

The shape of your reflector should suit the size of your grow tent, or the section of tent your reflector is covering.

For instance, if you have one 600W grow light in the centre of a 1.2m x 1.2m square a NorthStar Reflector is ideal.

If you’re unsure, think about using a Gavita Triplestar reflector, or an Adjust-A-Wings reflector. You can adjust the shape of your reflector if you need to.

What’s is my grow light reflector made from?

There are three main materials used:

• STUCCO - 80-85% Reflective

• Hammertone - 80-85% Reflective

• Vega/MIRO® aluminium - 96 – 98% reflective

You’ll notice that almost any premium reflector is made from 96 – 98% reflective Vega/miro aluminium.

What’s the difference between open-ended and closed-end reflectors?

Closed end reflectors have an additional panel at either end of the reflector. Open end reflectors don’t.

Closed-end reflectors tend to direct more light towards your plants, and create an incredibly uniform spread of light. Open-end reflectors reduce the risk of overheating so can be positioned much closer to your plant.

What are air cooled reflectors?

During summer, a lot of growers switch to air-cooled reflectors, specifically a Darkstar. They’re also used by a lot of growers who have limited headroom.

They look like a closed end reflector with a glass panel underneath. On either end of the reflector is a spigot you can connect ducting to. You then use an extractor fan to push air through one end of the reflector, over the lamp, then out the other end.

This helps push heat out of your reflector before it can enter the grow room.

During the summer when you may be having heat problems, they’re a big help. If you don’t have enough height in your grow tent, use an air cooled reflector and you can bring your light a lot closer to your plants.

It’s worth remembering that the glass panel will cause you to lose a little bit of light.

Can I clean my grow reflector?

With a dry cloth only, when your reflector is cool. Make sure you don’t touch it directly with your bare skin – doing this could damage your reflector.

How often should I replace my reflector?

Most reflectors need replacing after roughly a year, but it really depends on your reflector type and how much you’ve used it.

Remember, 50% of light emitted by your grow lamp hits your reflector – a 1% loss of reflectivity costs you around 0.5% of your overall yield.

There's a white powder on my grow light reflector, what’s causing this?

Chances are, you’re using hard water with a humidifier.

Hard water contains minerals. Use hard water with a humidifier and these minerals can build up on your reflector surface. After just 3 months, your reflector can lose more than 10% of its reflectivity.

If you’ve got hard water, the best thing to do is use a Reverse Osmosis filter. It’ll remove almost all impurities, including calcium carbonate, magnesium carbonate and chlorine.

What’s overlapping light?

You might have heard some people talking about cross over light, or overlapping light. This is where the beam of light from one reflector overlaps into the beam of light of another reflector.

Do it right, and you’ll get an incredibly intense, uniform spread of light in your entire tent, maximising growth.

It’s what you’ll get with an advanced Gavita layout.