Best Vitamin D Lamp: Sperti Vitamin D Light Box Review

Sperti Vitamin D Lamp has an average rating of 4.8 out of 5 based on 18 user reviews.

We need Vitamin D for good health, and one of the best ways to get it is sunlight. Specifically, UV-B rays that activate a chemical process that makes Vitamin D3. Vitamin D3 is essential for strong bones, fighting off disease, and keeping depression at bay. Vitamin D can also encourage weight loss.

Sperti Vitamin D Light Box

But just sitting by the window isn’t a good enough way to get Vitamin D because UV-B radiation doesn’t go through glass. Depending on the season, the time of day you’re outside, the amount of cloud cover and shade, the clothing you wear, and whether you use sunscreen, you may be prevented from producing enough Vitamin D. But the Sperti Vitamin D Light Box can fix that.

Scientists say that between 5 and 30 minutes of sun exposure twice a week is enough. The Sperti Vitamin D Lamp fills that need. The manufacturer says the lamp has been recognized by the FDA as an ultraviolet product for the production of Vitamin D. It’s basically sunshine in a box. And it only produces UV-B rays, not UV-A.

How the Sperti Vitamin D Lamp works

It’s actually quite easy to use the Sperti lamp, but you will need to stay near it and wear protective goggles while you wait out the 5-minute session. It has a timer, so you don’t need a watch or clock nearby to avoid overexposure. Set the timer for one to five minutes and you’re ready to start.

Sperti counsels beginning with 2 or 3-minute sessions when you first use the lamp, then working up to 5 minutes to avoid getting a sunburn. The lamp is similar to a tanning bed. It doesn’t need a warmup period; it’s ready as soon as you turn it on.

Once you begin treatments, they say that two or three 5-minute sessions per week is plenty for your body to synthesize the Vitamin D it needs. You don’t have to expose your face to the light. Some users put their backs, their legs, or other body parts near it instead. But be careful because very sensitive parts could get a sunburn.

Should there be a problem with the lamp or your treatment, it has an emergency shut-off switch.

Why use a Vitamin D lamp instead of taking supplements?

Sperti’s sales literature quotes two doctors that explain why obtaining Vitamin D with sunlight (or presumably the Vitamin D lamp) is nicer than only taking fish oil or other supplements. Besides the fact that these supplements cause digestive trouble for some people, they don’t stimulate the production of beta-endorphins that improve mood. They don’t give a person nitric oxide that lowers blood pressure. They don’t regulate sleeping patterns, either. Exposure to UV rays does all of that and more. The Sperti D/UV-F light is a powerful source of UV radiation. In some ways, it’s better than going outside.

A person who spends time outdoors in order to produce Vitamin D must cope with uneven amounts of exposure. The hour of the day, the weather, the amount of pollution in the air all affect the results. On the other hand, the Sperti lamp gives a precisely-measured, controlled dose each time.

Does the Sperti lamp help people?

According to many user reviews, it seems to make a positive difference in their well-being. They feel more energetic. Those that had their Vitamin D levels tested saw the levels rise after using the lamp.

A study was done in 2007 on how sun lamps affect patients with cystic fibrosis (who are often deficient in Vitamin D) used another lamp made by the Sperti company. This other lamp is designed for tanning indoors but it was effective in treating the deficiency.

Quality features of the Sperti lamp

When you see the price of the Sperti lamp, it may cause your eyebrows to lift a bit. But its cost comes from its proprietary design and American fabrication. The Sperti Lamp is made in a factory in Crescent Springs, KY. It is built from materials that will last for years, especially if you keep the light away from high humidity. The only moving part is the timer. The bulbs use UV fluorescent technology with 1,000-hour life spans. That’s 200 treatments, or over a year of three sessions per week.

The lamp is 22 inches tall and 12 inches wide, perfect for use on a tabletop. It has a carrying handle and weighs 15 pounds. It comes with an 8-foot long power cord, plus two pairs of protective goggles. It can be used on worldwide voltage, from 110V to 220V, and only draws about 666mA of current. It comes with a one-year warranty.


If the winter blues are getting you down, if you have a lack of energy, if you have a Vitamin D deficiency due to health problems, and if you don’t have time to get outside or are limited to how much sunlight you get, the Sperti Vitamin D Lamp is a simple and effective solution.

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