high quality 4*3w LED grid lamp 1.epistar chip,90-110lm/w 2.2 years warranty 3.good factory price 4.offer sample ... : red/green/blue/yellow/whitewarranty: 2 yearsCertificates: CE ROHSApplication :1.ceiling light2. School / Universities / Hosptial3. Conference / Meeting room , Show Room4. ... indoor and outdoor use.LED spot light,LED bulb,LED ceiling light,led floodlight,led downlight,LED tube:SMD T8SMD ...