1. Adopt bridgelux COB LED chip, light efficiency: >110lm/W at 90Ra
2. Use Lifud/Philips brand driver
3. Adaptor: 1 circuit 2 wire(1 phase 2 wire), 3 wire, 3 phase 4 wire
4. Three- Five years warranty
5. CE RoHS certificated
6. Beam angle: 15/24/36/45/60 deg