Selected LED chip with efficient driver, energy-saving with 30000 hours lifespan. High light efficiency 90-100LM/W , energy saving.Die casting aluminum material housing for perfect heat dissipation, With international 4 lines/2 lines, 3 phases/1 phase track connector head, matching well with most of good quality track. Welcome to contact for FOC (Fre* of charg* ) samples and door to door. Different beam angle for choice 15°, 24° or 36°,Lens with high transmittance,offering uniform and comfortable light UGR <15 3 CCT adjustable track light (3000K ,4000K, 5500K).It will reduce freight a lot! reduce 60%-70% freight shipping by sea and express Meanwhile help you save stock cost & improve inventory carry rate ,High CRI>80 (90 optional). Flexible light body structure can be rotatable and adjustable in horizontal and vertical direction. No flicker, durable quality in 3 years -Cheapest model : 7.5USD/PC Best regards, Nancy -------------------------------- Shenzhen High Quality Factory -- welcome to visit!