... for office lighting.4. Optimized light extraction system delivery high lumens.5. No RF interference, Lead free.6. ... Epoxy, ABS, PC, 14. No electromagnetism interference, no high power switch and inductance parts, no environment electromagnetism pollution.15 ... Company Profile: Shenzhen DSQ Optoelectronic Technology Co., Ltd. is a high-tech enterprise, which is integrated R & D, design, production, ...