... be seen from outside.14.Heat conductivity of aluminum base is 2.8, excellent heat dissipation, long life guarantee.15. ... are availableBenefits:1. Solid-state, high shock / vibration resistant 2. No RF interference, No buzzing noise 3. No fluorescent ... , high intensityApplications: 1. Bus, shuttle, railcar passenger interiors 2. Uninterrupted emergency lighting 3. Focused reading and Task lighting 4 ...