4'' Trimless Round Downlight,12W Trimless Round Downlight,Trimless Round Downlight 1.Triac Dimmable & Type IC Rated: No housing Required. 2.Junction Box Included: No additional hardware required. 3.Fast & Easy Installation: Save labor cost. Shenzhen Goldsuno Opto-electronic Techonology Co. Ltd is a high–tech enterprise integrating R& D, production and selling of LED indoor lighting products, with more than 20 R&D engineers engaged in structure and driver design. Goldsuno Opto-electronic vertical integrate industry chain. We have subordinate department: shell production, heat-dissipation design and manufacture; LED driver R&D and application; high transmittance, anti-glare PC cover and reflector design and manufacture; SMD automatic produce and assembly; aging testing etc. Since 2009, we have obtained 12 patent technologies. LED down light series were UL, TUV/CE, SAA, RoHS approved. We endeavor in providing customers with stable, high quality and competitive products.