GembaRed Calm Red LED Clip Book and Reading Light

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  • Regular price $39.00

The GembaRed Calm is finally the solution for a Red battery-powered book light!

With the Calm Red LED book light is the ultimate reading light for sleep and circadian rhythms!

- Calming red/orange 630nm LED lights.

- Built-in battery powered light and easy recharge with USB connector.

- No Flicker or EMF by using a stable DC battery!

- Silicone goose-neck for easy adjustments.

- Large lighting area.

- Three different brightness settings to customize your experience.

- Large strong clip to attach to a book, side of a desk, or bed headboard.

- Large base to stand itself easily on a desk or bedside table.

The GembaRed Calm is finally the book-light for reading at night! It covers a large area with gentle diffuse red light. There is minimal glare and great contrast with our 630nm LEDs! Perfect for easy and comfortable reading at night to prepare for a good night's sleep.

Most other "Amber" or "Low-Blue" reading lights will still have a trace of blue and a bunch of green in them! Our GembaRed Calm is the first book-light that is only Red! This makes it optimal for avoiding melatonin suppressing blue and green lights!


Wattage: 3W LED

LEDs : 12


Specified Wavelength: Red 630nm

Actual Peak (3rd party measured): Red 639nm

GembaRed Calm Spectrum Analysis


Highest Setting: 5200 Lux Emitted, ~2 Lux at reading distance

Middle Setting: 3000 Lux Emitted, ~1.4 Lux at reading distance

Lowest Setting: 800 Lux Emitted, ~0.6 Lux at reading distance


- LED Length ~ 2.7 inches

- Gooseneck Length ~ 8.5 inches

- Base Dimensions ~ 4.5 x 1.6 x 2.4 inches

- Weight ~ 0.4 lbs

Warranty: 1 Year Limited Warranty


- Capacity - 800mA

- Usage Time: 5 hours at lowest setting, 3 hours at highest setting

- Recharge Time: 2.5 hours

- Recharge via USB cable - 5V, 1 Amp recommended

- Estimated Life: 50,000 hours

* Charge the battery to full upon receipt. Do not "top off" the battery and only recharge as needed to help promote a long battery life. *

Whats included?

- GembaRed Calm Red LED Book Light

- USB connector


Shipping within the USA is FREE! Please allow 4-7 business days processing time to ship, and an additional 2-11 business days for delivery depending on the location.

We do not currently ship internationally at this time.


Customer Reviews

Based on 16 reviews
Great light for maintaining night vision

I had a hard time finding a red light. I use it when riding in the fire engine at night to look at the maps without distracting the driver, or me. The light has a strong clip, the flexible shaft stays in position and the light is plenty bright.

Light is ok

The highest setting of the red light isn’t bright enough for me to read at night. The light also is difficult to attach to any book, so I have to sit it on the headboard of the bed which puts it further away. I’ve only used it a few times due to it’s inconvenience of use. It’s heavier than expected.

Jennifer Pendergast
Best red light!!! It’s perfect

I got two of these, the first one was for me to have a bedside light in case I need to get up, and that doesn’t require electric, since I turn my electricity off at night. It’s perfect, so I got another one for my 6 yr old.

Rowan Olson
Awesome Product!

I love the reading light! At first I thought that it would be hard to read with the red light but you can easily read on the lowest light setting.

Jamie Harkins
Battery life is way too short

I love the light but am shocked at how fast the battery drains. I have to charge it every other day. Read the usage times carefully (I find I need it on the brightest setting to be able to read a book…so only 3 hours!) Please make one with a longer battery life!