
Continuously illuminating light sticks and light wands, such as the Viltrox K90 dual light kit, provide ways to make your portrait and video shoots look more professional (rather than having to rely on available light in your locations). The K90 is marketed as a fill light, so it can fill in harsh shadows caused by a brighter location light source, such as the sun. Continuous lights (as opposed to intermittent flash lights) are traditionally used on video shoots, but the K90 also proved to be a powerful and effective light source for on-location portrait shoots during our test.
An LED (Light Emitting Diode) tube light’s larger surface area covers a wider range than a smaller, more narrowly focused spotlight, such as the Neewer HB80C 80W. The LEDs are placed along the K90’s 973.3mm length, giving you almost a metre of light. You get two K90s in the kit, which enables you to use one as a key light and the other as a fill, which helps ‘model’ the subject by emphasising the contours of their face (rather than suffering a ‘flat’ look from a single burst of on-camera flash).