BL vs BLB Lamps

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The claims for BLB lamps have changed over time, shifting between BLB lamps are better at catching flies, to BLB lamps are better for night-flying insects (and not for flies), to the current position which is that BLB lamps are better for catching Lepidoptera (moths). It is claimed that there is USDA research, but no specifics are given, no way to check out the claims.

The BLB lamp is basically the same as the BL lamp except for the filtering elements in the glass tube. The tube filters out light (energy) that is visible to humans. My experience leads me to believe retaining this light (using BL, not BLB) increases insect response. Tests with houseflies tell me exactly that.

We have and will sell BLB lamps. We don't recommend them. We will usually try to talk you out of it. We have seen no research that would lend credence, and, frankly, judging by the track record, don't believe there is any reason to use a BLB lamp except perhaps for decorative purposes. All evidence says BLB lamp claims are misleading gimmicks. BLB lamps cost more and give you less fly attraction.