LED solid-state lighting products Introduction

Due to the LED solid-state lighting products have good luminous efficiency, long life and high reliability unique characteristics, so it’s became more popular by markets and customers. But at the same time, the LED solid lighting have fast response characteristics, it haven’t thermal inertia and afterglow effects, like traditional lamps, so it have big influence by current fluctuations, the current fluctuations affect the luminous flux output directly, the lighting flashing is the external expression of luminous flux change, that caused more and more people focus on lighting flashing issue. Dated 14th December, 2012, the EU officially released the (EU) NO 1194/2012 rules <Implementing rules of the European Parliament and the EU Council Directive 2009/125/EC on the eco-design requirements of directional lights, LED lights and related equipment requirements>.Compared with <European Parliament and Council Directive 2005/32/EC implementing rules for non-directional household lamps eco-design requirements> which posted by the European Commission Regulation (EC) NO 244/2009 Regulations dated 18th March, 2009, the new rules have complete mandatory and eco-design requirements. Start and Run-up time as the two indicators functional requirements in the industry has been more emphasis by manufacturers.