... Sample preparation 1-3 days;6. Samples: one set for free but freight cost on your account.What we can ... do for you?1. We are professional LED manufacturer and trade ... bulb, LED guardrail lamp, high power spotlights, Led brick lights, LED underwater lamp, LED lawn lamp and so on;2 ... both sides PC cover or PC + AL cover,and for the PC tube we have PC bi-color tube, ...