U Shape Energy saving Lamp, Energy Saving Light Bulbs, high luminous efficiency, Longest life ... Temperature e) Lamp base =====Company Brief Introductions=====We are energy saving lamps manufacturer,and some conditions are these:Certifications: ISO9001,CE ... capacity: 800,000pcs/monthDelivery time:5000pcs~10x40HQ 20Days U Shape Energy Saving Lamp CFL, Energy Saving Light Bulbs, High Luminous Efficiency