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What's the difference between charging the light 
via USB or the solar panel?

Speed! Charging via USB is ~6x faster than via solar 
due to the input power. Whether charging via solar 
or USB however, the outcome remains the same - a 
full battery charge. Our advice is to charge via solar 
for a natural source of power, but if you’re in a pinch, 
charge via USB.

How long does the headlamp and flashlight last?

On a full charge, the flashlight lasts for 30 hours 
on low mode, 12 hours on medium, and 4 hours on 
high. The headlamp lasts for 24 hours on low mode, 6 
hours on medium, and 2 hours on high.

How long does it take to fully charge the entire 
device via USB and solar?

Charging via direct sunlight should take ~8 hours. If 
you're in a hurry, recharge fully via USB in ~2 hours.

Do I charge the headlamp and flashlight separately? 
If so, how?

No, the headlamp and flashlight pull power from the 
same source and are charged together.

Can I use any USB cord or do I need to use the cord 
provided?

To charge this product via USB, a USB-A to USB-C 
cord must be used. This is the cord provided in the 
box, however, if you have the exact same cord, that 
will work too.

Is the head strap washable?

Yes! Keeping the head strap clean is simple, and can 
be hand washed or machine washed cold. 

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Frequently asked 

questions

What is direct sunlight?

Direct sunlight means that the sun’s light is directly 
hitting the solar panel. For example, if you were 
standing outside under the sun with nothing 
obstructing you and the sun, then you would be 
in direct sunlight. If you were standing inside, you 
would be getting indirect sunlight but no direct 
rays from the sun. Solar panels always need direct 
sunlight to charge. If in doubt, think of it this way; if 
you were Luci and you were able to directly see the 
sun, then you would be in direct sunlight!

It's cloudy, will my light still charge?

Yes, but it will charge at a slower rate than on a 
bright, clear day. As your Luci charges via the red and 
violet frequencies of visible light, the charge times 
will vary based on the UV index or overcast skies. 
Generally speaking, the higher the UV index, the 
faster the charge.

Will my light charge under indoor lighting?

The sun generates significant red and violet 
frequencies (which charge your Luci), whereas your 
ordinary indoor lights emit a tiny fraction of that UV. 
We recommend you go straight to the source and put 
your Luci directly in the sunlight from a windowsill 
or, for the best results, outside! Luci is durable and 
completely waterproof.

Do I need batteries?

Nope. All of our products are solar powered and 
rechargeable, so no batteries are needed. No more 
searching the drawer for that second AA!

Can I charge your products from my car dashboard?

We advise against charging on a car dashboard. On 
a hot summer day, your car dashboard can reach 
temperatures of up to 160ºF (71°C) which exceeds the 
temperature limit of our products - 122°F (50°C).

Can my light be left outside?

Yes! In fact, our products love being outside in the 
open. Luci is durable and waterproof. This means you 
don’t need to take cover when it rains on your ride.

We're here for you.

 For the full list of FAQs and 

troubleshooting, go to mpowerd.com/faq.

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