I can attest to the Bell lights. I have a Lumina series 8-LED light, and it is really fairly bright. With two of them, I wouldnt even worry a bit. Its all about a balance of bright vs cost. After a certain point the price-per-lumen cost skyrockets, and gets you marginal benefits. I would invest in an adequate headlamp, and an EXCELLENT rear lamp though. I'd rather have taillamps that are insanely bright than a head light.