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Carson LM-30 DESKBRIGHT 300 Magnifier

BH #CALM30 • MFR #LM-30
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Carson LM-30 DESKBRIGHT 300 Magnifier
Key Features
  • 4.3" Main Lens
  • Aspheric Lens Reduces Distortion
  • 2x Magnification
  • 5x Spot Lens
The LM-30 DESKBRIGHT 300 Magnifier from Carson features a 4.3" main lens with 2x magnification, as well as a smaller 5x magnification spot lens for very fine print and details. A flexible goose neck allows you to position the magnifier where you need it, and four LED lights with a diffusive cover illuminate your subject. These light diffusers eliminate LED hot spots and evenly distribute the light, and the magnifier's aspheric lens provides a large viewing area while greatly reducing edge to edge distortion. The LM-30 is ideally suited as a reading aid for books, magazines, and newspapers, and this versatile hands-free magnifier works well for crafts, model building, soldering, jewelry design, needlepoint, sewing, quilting, coin and stamp collecting, and more. The light runs on AC power via a USB Type-C cable and wall adapter, but can also run on three AA batteries.
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$39.97
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Carson LM-30 Overview

The LM-30 DESKBRIGHT 300 Magnifier from Carson features a 4.3" main lens with 2x magnification, as well as a smaller 5x magnification spot lens for very fine print and details. A flexible goose neck allows you to position the magnifier where you need it, and four LED lights with a diffusive cover illuminate your subject. These light diffusers eliminate LED hot spots and evenly distribute the light, and the magnifier's aspheric lens provides a large viewing area while greatly reducing edge to edge distortion. The LM-30 is ideally suited as a reading aid for books, magazines, and newspapers, and this versatile hands-free magnifier works well for crafts, model building, soldering, jewelry design, needlepoint, sewing, quilting, coin and stamp collecting, and more. The light runs on AC power via a USB Type-C cable and wall adapter, but can also run on three AA batteries.

UPC: 750668013514

Carson LM-30 Specs

Magnification
2x with 5x Power Spot
Illumination
4 x COB LED Lights
Dimensions
4.3" Lens
Power
USB Type-C to US Wall Adapter
3 x AA Batteries
Packaging Info
Package Weight
2.49 lb
Box Dimensions (LxWxH)
9.5 x 7.5 x 6.1"

Carson LM-30 Reviews

Excellent and comfortable to use

By Frank
Rated 5 out of 5
Date: 2026-03-18

Wonderful. My eyes ain't what they used to be. The lighting is from all sides. Main magnifier is large and comfortable to use for long periods. Excellent for small work like electronics. The small magnifier is has a lot of magnification, great for removing splinters or seeing between IC pins. Has 2 brightness settings, bright and brighter.

See any errors on this page?

Is the lens glass or plastic?

Is the lens glass or plastic?
Asked by: Peter
The Carson LM-30 DESKBRIGHT 300 Magnifier uses an acrylic lens.
Answered by: Marvin H
Date published: 2026-03-16

What are the power needs of this magnifier (so I ...

What are the power needs of this magnifier (so I can figure out what size USB power bank to buy)?
Asked by: Sarah
The Carson LM-30 DESKBRIGHT 300 Magnifier (B&H# CALM30) comes with an AC adapter included. Moreover, it can run on three AA batteries. Now, it requires 5VDC (through the USB C port) and would be able to be used for hours at a time with a 5,000mAh or 10,000mAh USB power bank such as the Belkin BoostCharge USB-C Power Bank (10,000mAh, 15W, White) (B&H# BEBPB011BTWH): https://bhpho.to/4bmSPLt
Answered by: Yoni S
Date published: 2025-02-28

Can this be powered by a portable USB power bank?

Can this be powered by a portable USB power bank?
Asked by: Sarah
Yes, it can be powered by a USB- C cable connected to a power source.
Answered by: Yaakov
Date published: 2023-03-25
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