How Luci Works

Want to see MPOWERD's Luci User Manual? Click here.

How does my Luci light work?

Luci's solar panels charge via the red and violet frequencies of light emitted by the sun, which are then stored in its lithium battery until you're ready to use it. On a really bright and sunny day, your light should fully charge in 7-8 hours of direct sunlight. On overcast or rainy days, because there's so much less light of those frequencies that's able to get through the layer of cloud cover, it could take up to 20 hours (2-3 day’s time).

It's that simple – everything you need to use (and reuse) a Luci light, you've got already. In fact, they're so hassle free, you don't need to worry about things like leaving it out too long or the light turning on by itself while charging! It’s a closed circuit system with a built-in surge protector.

There’s not a cloud in the sky, and it’s been 7 hours, but the light still isn’t fully charged. What’s going on?

There could be a couple of things going on. A sunny day doesn’t automatically guarantee a high UV index, so make sure to check the forecast. It’s also key to make sure you put the Luci in direct sunlight.

How do I know I’m getting direct sunlight?

Something gets direct sunlight when the rays literally hit the object. You get direct sunlight when you sit outside, without a hat, and there’s nothing between you and the sun. Your cat gets direct sunlight when she sits on the windowsill on that one bright patch. Check the indicator to be sure your light is fully charged.

How do I read the charging indicator properly?

Press the lightning bolt button opposite the power button. When all three dots in the middle of the two buttons are lit, your light is ready to go!

When fully charged, how many hours of light does it give?

A Luci can last up to 24 hours (and we've heard stories of it lasting longer!), but it really depends on the model and the brightness setting you're using. For more info, go the page of the Luci you bought and choose the tab marked “specs.” Visit the shop page.

How long does the product last?

If you fully charge and then use up the entire battery every day, you'll get about 1-2 years of use out of just one Luci. For the more occasional user, a Luci light can last up to 7 years!

If I'm not using Luci all the time, how often should I recharge it?

After you’ve used your light, and you don’t expect to be using it on a regular basis, there’s no harm in charging it all the way and then storing it away. A Luci light will retain 95% of its charge for each month it's in storage. In other words, if you were to stow it away on January 1, you'd still have more than half the charge come October!

How bright is Luci

Luci Outdoor 2.0, Original, Lux & Color will light up an area of 150 square feet (14 square meters).

Our smaller lights, Luci EMRG, Candle and Spooky will do the same for 100 square feet (9 square meters).

How long do the LED bulbs last?

Good news! You'll never need to worry about replacing the bulbs – the LEDs will last for the entire lifespan of the light.

Can it be used outside? What about in the water?

Yep – we even recommend it! Because of their unique inflatable design, Luci lights are shatterproof, IP67 waterproof (it can go a full meter underwater) and they float! No need to worry about chlorine or salt, either. Pools, lakes, oceans, all are fair game.

Can Luci lights work in all temperatures and climates?

Luci lights still work at temps as cold as 15°F (-10°C) and as hot as 122°F (50°C). That being said, on hot summer days, definitely avoid leaving your Luci light on your car dashboard or concrete, as heat in contained spaces can make surfaces reach all the way to 160°F, aka “ouch this seat hurts my skin” degrees.

During the warmer months, we’d recommend charging your Luci deflated, because heat expands things in weird ways. We want to keep your Luci looking as fresh as the day you bought it.

Is there any risk of electric shock or burns from a Luci light?

Nope. Everything's sealed safely within. Unlike candles or traditional bulbs, Luci doesn't give off heat.

I can't seem to inflate the Luci. What am I missing?

First, check the handy icons on the inside packaging. Still having trouble? It's like a beach ball, so make sure you're pinching the two-way leak proof valve with your fingers or teeth while blowing into it. To deflate, pinch the valve again while compressing the Luci – this lets the air escape.

I'm having trouble charging or using my light. What should I do?

First, make sure you're charging your light so that the solar panel faces direct sunlight. Depending on the strength of the sun and cloud conditions, a full charge can take anywhere from 7-20 hours! 

We recommend charging your unit outside in the sunniest place you can find. This will give your Luci the most exposure to the sun and make it charge the fastest!

If you choose to charge your light in the windowsill, remember that the sun moves throughout the day, so you’ll have to move Luci to keep the panel in direct sunlight. If you're still having trouble, check the user manual, and as always, you can contact Customer Support.