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Solar Green House Lights – Finished! | SolarKnowHow

The finished greenhouse
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Solar Greenhouse Lights installed – check!

Tim finally finished the greenhouse, and the finishing touch was the solar lights.  After a lot of fussing, solar outside lights in the form of pendants were the choice.

I will show you the choices, explain why we chose them, and show you the final product.

The Greenhouse Itself

Greenhouse almost complete

The Greenhouse itself is fairly small, about 10 x 6.  It will mostly prepare plants for Spring planting and not be used to grow plants year-round.

I think Tim did an outstanding job and it is perfect!

All types of materials were scavenged – old doors, even older windows.  At least 2-3 people a day stopped to comment while it was being built.

Tim has had numerous requests to have the little greenhouses built, and may have found his next profession!

What I Wanted in My Solar Greenhouse Lights

Choosing a solar light is not that difficult, and it often just boils down to personal preference, but there are a few things to consider that were important to us.

  • How long would the solar lights stay on?
  • Could I adjust the lighting?
  • Would the lights be bright enough? How many lumens?

Based on these three questions, I narrowed my choices to the lights below before finally choosing the MLambert lights. They are the first column in green.

Table could not be displayed.

Why I Chose the Lights I Did?

I chose the MLambert lights for a few reasons.

  • 300 lumens (150 per pendant) vs. the Barn lights 40 lumens. I paid $5 more than the Barn lights (my next favorite). No real contest there.
  • They were rated IP65. The other two did not provide a rating but just said “waterproof.”
  • Ratings on all the lights I short-listed were excellent.
  • Light settings – up to 12 different settings.
  • Aesthetics – I liked the sleek retro look.

Solar Green House Lights – Installation

One pendant was installed on each end of the greenhouse, about 2.5 feet from each end. The solar panels were placed just below the peak of the roof.

The south facing solar panel is tilted perfectly and gets a significant amount of sun.

The north facing solar panel is not in the ideal location, but appears to get enough sun to operate effectively.

Green House Lights – Performance

Overall I have been very pleased by the performance of the solar lights.

Positives

This is the best part of the solar greenhouse lights, the performance. The ability to set the brightness is great, and they are much brighter than I expected!

The lights are not too small, and provide a nice warm ambiance that make it a nice bright work area.

Negatives

There are not really any negatives.

I do wish they came on a little sooner. I knew when I bought them that it had to be dark for them to work, but they were not kidding. It has to be dark!

That’s no problem, though. Get home, eat dinner, wait for the kids to go to sleep, and then hide in the greenhouse.

Solar Light Background

Below is a little more information on outdoor solar lights if you are interested. I’m a big proponent of solar use, and there are so many different ways to use this clean energy.

What is a Solar Light?

A solar light receives light during the day when the sun is out, stores it in a rechargeable battery, and releases the stored energy at night as light after the sun goes down.

A solar light does not need to be connected to a power outlet, and it does not need its battery often replaced because it usually comes with a rechargeable battery. In some instances, the manufacturers build the batteries into the lights, and they cannot be replaced.

Simply put, the solar light provides light for you at night when the sun is down with little or no maintenance.

How Do Solar Lights Work?

Solar lights consist of 3 main parts.

  • A solar panel
  • A rechargeable battery
  • A load – Light Source (LED)

Basically, Photovoltaic cells in the solar panels absorb sunlight during the day, charging the battery, and light the bulb at night.

How to Choose a Solar Light

Regardless of the type of light you choose, there are basic requirements you should consider before making a purchase.

Battery Power – Regarding battery power (mAH), the higher the mAH, the better the battery. However, what you really want to know is how long your light will stay on after it gets dark or how long a full charge will last you.

Brightness – Every manufacturer will tell you they have the brightest solar light. Check the lumens. Other than Solar String Lights, they should be listed. Point of Reference – 40 lumens = 400 watt light bulb.

Your choice will depend on where you use the lights, but below are some general guidelines.

  • Step lights: 12-100 lumens
  • Hardscape lights (on walls): 50-185 lumens
  • Landscape/Garden lights: 50-300 lumens 
  • Path/Garden lights: 100-200 lumens
  • Landscape spotlights: 120 lumens
  • Lamp posts: 120-180 lumens
  • Pond/pool lights: 200-400 lumens
  • Motion sensor lights: 300-700 lumens
  • Floodlights: 700-1300 lumens

LED Bulb – Most good outdoor solar lights now use more efficient LED bulbs. These produce a bright white light so consider tinted glass or a cover. Larger bulbs and high-quality photovoltaic cells produce better light.

Charging Rate (Watts)Solar panels are rated in watts, and higher is better. If your lights don’t fully charge during the day, it does not matter how long they hold a charge at night. If your lights are in a shaded area, place a solar panel in a sunny area and wire it to the lights.

Weather Resistance – Many manufacturers claim their lights are waterproof or weather resistant. Look for common ratings – IP44, IP65, IP66, etc. The higher the rating, the more resistant the light.

For more information, use this IP rating checker.

FAQ

Does a solar greenhouse light need to be turned off?

Turning off a solar light will help preserve its battery life.

Do Solar lights require batteries?

Outdoor solar lights store the sun’s energy during the day so that you can use the lights at night. This means that they do require batteries to store the energy.

Do solar lights work on cloudy days?

Yes, solar lights will gather and store energy on cloudy days, but they work best with direct sunlight. It is best to place solar panels out of the shade with southern exposure if you live in the northern hemisphere.

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