1. High efficiency 55lm/W 2. 5 year lifespan 3. Super thin and light, 11mm and 1.27Kg 4. Conforming to CE, ROHS Features:Low lumen decline New high efficiency constant current driver, Instant start, no flicker, no humming 5 year lifespanSuper-thin and light, 11mm and 1.27KgDifferent installation methods: recessed and suspended or surface mounted Sturdy Construction: organic glass light guide ...