This little RGB panel from K&F Concept is a handy bit of kit to keep in the camera bag. It is compact, sits nicely in the hand, and it does not scream cheap. For quick portraits, product shots, or lighting a YouTube setup, it pulls its weight.You have 360 degree hue and saturation control, plus thirteen effects from flashes to slow fades. K&F quotes 2,812 lux at 0.3 m from a 12 W array of 135 LEDs. The CRI is 95+, which keeps skin tones looking natural. The 5,000 mAh battery is a welcome bump, giving roughly a couple of hours at full whack. Controls are straightforward, a single button and a scroll wheel, with a small, clear screen. At 193 g and 15 x 8 x 1.8 cm it is pocket-friendly. Two 1/4 inch threads, top and bottom, along with a cold shoe adaptor, make mounting easy.It is not a sunlight killer, brightness drops off quickly with distance, and the bare panel can look a bit harsh without diffusion. The effects feel a touch novelty. That said, colour accuracy, portability, and mounting options are strong, and at £35.99 the value is hard to argue with. I rate it as a dependable travel fill or hair light, and a neat tool for creative colour work, just do not expect it to replace a bigger key light.