Great little on camera or zinger light to have on set. Measures 8-inches x 5-inches. Battery lasts forever! Adjustable color temperature, dimmable. Built in barn doors, removable diffusion panel.

https://fotodioxpro.com/products/led-312ds

The Fotodiox LED-312DS is a powerful and professional LED light panel, that lets you change the light's color output anywhere between 5600K daylight and 3200K tungsten color temperatures. The 312DS is compact and versatile enough for countless shooting scenarios, all while remaining lightweight enough to bring along on every project. The 312DS is a complete kit that includes everything you need to mount this versatile wireless LED light on a camera or on a stand, and it all packs into the included premium custom case.

The LED-312DS is equipped with 156 ultra-bright 5600k LEDs and 156 ultra-bright 3200k LEDs. The powerful LEDs offer full spectrum, beautifully soft light - ideal for location and studio productions for both photographers and filmmakers. The light level is fully dimmable from 10%-100% to adjust the light output. A second control adjusts the color temperature of the 312DS, choose any value between 5600K daylight to 3200K tungsten. The rear-mounted backlit LCD status display shows the remaining battery level, the current brightness level, and the current color temperature.

Control and shape the light with the included all-metal barndoors. The barndoors lock securely into place for a secure fit, no matter how the light is mounted. Two included diffusion panels lock into place – one for softening the light, the other to convert the light output to match tungsten light sources. Dovetail mounting channels on all sides of the light lock together multiple 312DS light panels into a much larger light source.

The 312DS can operate wirelessly using the included pair of Sony NP style batteries, and dual intelligent charger. Kit includes 312DS LED light, all-metal barndoors, a pair of Sony NP style rechargeable li-ion batteries, dual intelligent charger, premium ballhead mount, AC adapter, car accessory port adapter, and a custom-fitted molded case with handle.

Features:
LCD Screen: Brightness, Color Temperature and Battery Life Indicator
10-100% Power Dimmer Dial w/ Off Position
Battery Mounts for Two Sony NP Style Batteries
Adjustable Color Temp from 3200k to 5600k, Color Rendering Index > 92
Top, Bottom and Side Dovetail Mounts and 1/4"-20 Female Thread Mount
Removable Ball Joint Adapter with Cold Shoe Mount
156 Tungsten and 156 Daylight LEDs in Alternating Rows
Lighting is Adjustable to Match Mixed Lighting Scenarios
Kit Includes:
LED-312DS Dimmable/Color Adjustable Unit (3200-5600k)
2x 2200mAH f/ NP-F550 7.4V Battery Packs
100-240v Worldwide Travel Charger w/ AC & Car Charger
Ball Joint Bracket w/ Cold Shoe and 1/4" Female & Male Thread
Removable Collapsible Barndoor Attachment
Removable Slide-In Diffusion Panel
Carrying Case w/ Handle and Molded Compartments

Name Fotodiox Pro LED-312DS
Color Balance Tugsten to Daylight ~ 3200k-5600k ± 200
Number of Bulbs 312x 0.06w LED lights
Luminous Emittance 3200k - 665 lx
5600k - 765 lx
EV100 @ 1m1 3200k - 7.5 ΔEV
5600k - 7.8 ΔEV
Avg. Battery Life ~1 Hours per Charge
LED Beam Angle 60 degrees - Modifiable with Barn Doors
Power Supply 2x 2200mAH f/ NP-F550 7.4V Battery Packs
Dimmable Amount 10-100% Dimmer Dial