外贸询盘回复，谁能帮我翻译下，万分感谢

Hello Fiona. I will explain you my questions better. Please let me know your comments and thoughts. Lets make an example.??Please check me if I'm wrong. 3W(5050)ED Quantity :21pcs/LED Luminous Flux:20-22LM/??Luminous Flux (Lm) :290-320LM/LED - 21pcs of Epistar SMD5050 he a consumption close to 4.5w - 21pcs of Epistar SMD5050 with luminous flux of 21lm/wt should emit close to 450 lm What are the Epistar LED chips families used in high-bright and normal-bright products???(I mean the LED chip code) Thank you for your time.