For 3W LED light bar we used XB-D Chip, for 5W LED light bar we used XT-E Chip, for 10W LED light bar we used XM-L2 Chip.
For 3W LED light bar we used XB-D Chip, for 5W LED light bar we used XT-E Chip, for 10W LED light bar we used XM-L2 Chip.