1) Long service life, Low heat radiances, Quick start, No flash, Soft light 2) Temperature Range: -10oC - 40oC 3) Bulb material: imported fire-retardant PC material, good quality fluorescent powder 4) Have 2U, 3U, 4U, Spiral and ball designs available. 5) High luminous efficiency, soft and comfortable lighting 6) Voltage: 110/230V, Service life: >8,000hrs, Color temperature: 6400K, 2700K, 5500,or per customer's requirment. 7) Color index Ra >85?, Fire retardant PCB 8) Normal 2U series: from 5W to 15W 9) Small 2U series: from 3W to 13W 10) Normal 3U series: from 13W to 18W 11) Small 3U series: from 7W to 13W 12) Normal 4U series: from 45W to 85W