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SmallRig RM 40C Mini LED Video Light

BH #SM5359 • MFR #5359
2 reviews
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SmallRig RM 40C Mini LED Video Light
Key Features
  • For Content Creators and Vloggers
  • Output: 4670 Lux at 3.3' (5600K)
  • 2500 to 10,000K Color Temperature Range
  • CRI 96 | TLCI 99
The RM 40C Mini LED Video Light from SmallRig is a high-powered, 40W, ultracompact light capable of adding full RGB color to your productions. The light is pocket-sized and features a 2500 to 10,000K color temperature range and 14 built-in lighting effects to execute your creative vision. A CRI of 96 and a TLCI of 99 ensure accurate color reproduction of your subject matter.
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$79.99
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Output
25W
40W
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SmallRig RM 40C Overview

The RM 40C Mini LED Video Light from SmallRig is a high-powered, 40W, ultracompact light capable of adding full RGB color to your productions. The light is pocket-sized and features a 2500 to 10,000K color temperature range and 14 built-in lighting effects to execute your creative vision. A CRI of 96 and a TLCI of 99 ensure accurate color reproduction of your subject matter.

An integrated LCD screen helps monitor your brightness, color temperature, and battery life. The light has a magnetic mounting design to attach to metal surfaces. It also features a 1/4"-20 thread at the bottom for attachment to an articulating arm. The built-in 4800mAh battery keeps the light running at 100% brightness for 55 minutes. A USB-C PD input recharges the battery quickly while in the field. Included diffuser and grid attachments help achieve different lighting looks.

SmallRig RM 40C Specs

Key Specs
Item Type
1x LED Light Panel
Included Light Modifier
1x Diffuser
1x Grid Reflector
Included Storage Case
No
Photometrics at 3.3' / 1 m
5600K: 433 fc / 4670 Lux
Color Temperature
2500 to 10,000K
Color Modes
RGB, Daylight, Tungsten
Color Accuracy Standard
CRI 96
TLCI 99
Dimming
Built-In Dimmer
Front Accessory Mount
Proprietary
Power Source
Battery (Built-In)
Battery
1x Rechargeable (Built-In)
Power Consumption
40 W
Fixture Mounting
Magnetic
Light Fixture
Item Type
1x LED Light Panel
Included Light Modifier
1x Diffuser
1x Grid Reflector
Included Storage Case
No
Photometrics
5600K:
433 fc / 4670 Lux at 3.3' / 1 m
Color Temperature
2500 to 10,000K
Color Modes
RGB, Daylight, Tungsten
Color Accuracy Standard
CRI 96
TLCI 99
Dimming
Built-In Dimmer
Cooling System
Fan
Built-In Flash
No
Preprogrammed Effects
Yes
Umbrella Mount
No
Front Accessory Mount
Proprietary
Power & I/O
Power Source
Battery (Built-In)
Inputs/Outputs
1x USB-C Battery Input
Battery
1x Rechargeable, 7.3 VDC, 4800 mAh, 35.04 Wh (Built-In)
 • Up to 55-Minute Runtime at 100% Brightness
Battery Charging
Charging Cable (Included)
Included Adapter / Cable
Yes
Power Pass-Thru
No
Power Consumption
40 W
Mounting
Fixture Mounting
Magnetic
General
Display
LCD
Environmental Resistance
No
Materials
Polycarbonate
Dimensions
5 x 3.1 x 1.3" / 12.8 x 8 x 3.2 cm
Weight
0.7 lb / 302 g
Packaging Info
Package Weight
1.07 lb
Box Dimensions (LxWxH)
6.3 x 5.1 x 2.8"

SmallRig RM 40C Reviews

A lot of light for the price.

By James
Rated 3 out of 5
Date: 2026-01-04

Bought this to replace a broken Aputure MC. It's bigger, but will still fit in a jacket pocket. It's all plastic, and feels a bit cheap, but it puts out a lot of light. A few design issues that could be better: the power switch is right next to the mode switch, so I often find myself hitting the wrong switch. And the magnet connection for the grid and diffuser isn't strong enough to keep you from knocking it off if you bump it. Overall, it's a good budget option, but it's not built to survive much abuse.

Very bright, but...

By Nick
Rated 5 out of 5
Date: 2025-12-15

I couldn’t go less than 5 stars because it does exactly what it advertises, and it does it quite well. It’s very bright, has a full range of dimming, and offers the full spectrum of colors to play with. The integrated 1/4-20 female mount is a nice touch. The magnet on the back is fairly weak, so you can’t reliably attach it to a vertical surface like a wall, but it works fine on horizontal metal surfaces and won’t slide around. As for the front attachments, it comes with both a honeycomb grid and a diffuser. They can be used together, independently, or not at all. Using both does cut down the output quite a bit, as expected. Using them separately still gives you a very strong light source, and with no attachments at all, it’s an insanely bright light for such a small form factor. The “but”: the fan is very noticeable. You don’t really hear the fan motor itself, but you do hear the airflow it creates, so it’s not a mechanical noise. Fan speed adjusts with output intensity, which gives you some control, but if this light is close to your audio source, it’s something to be aware of—you could easily pick it up on a mic.

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