I think you have enough lighting. yes. But you may be frying these plants before they ever had the chance to grow. Your problem seems humidity. You said you had to water them every day?? (Correct if wrong) I'm looking at early stage of the 6 plants growing. It seems to me that a few had not fully germinated all they way and they are being blasted with hot light. Now i'm not a scientist, and that's just my observation.

Although i am curious if that's why the LR2's all died.