Bisun - making a range of LED lighting systems for cavers.
Complete twin-beam caving lights and drop-in upgrades.
Bright spot beams for Duos. Dive and Photo lighting.

Bisun units for Duos

Bisun produce the Flexitwin twin-beam insert for Duos - a highly flexible twin-beam LED unit combining simple operation and exceptional choice of output combinations via the 'varibeam' user interface - separate selection of beam blend and total power is easy to learn, yet gives more choices than 'programmed' lights.
Instant yet 'reversible' access to a full-power spot beam from any regular output makes things even better.
The latest V5 version uses the highest output XP-G3 LEDs for maximum efficiency.