One kit covers the VTL3800, VL8000-TC, and VL10000 — and any of them becomes a fluorescence rig the moment you fit it. On a night dive, the FDK55 reveals a reef that glows: corals, anemones, and critters lighting up in colors white light will never show you.
Pairs well with: Bigblue's Fluorodive mask filter, so your eyes catch the full glow.