I also have the StarFire dual-beam setup with the intelligent switch. The lights are very bright for halogens and have been pretty durable. I've had these for more than 5 years and they're still going strong. I called to ask about ordering a new mounting bracket a couple of years ago and JetLites gave me a sweet deal on an upgraded battery and switch which cost me less than $30 (including S&H). Their customer support is excellent and their products are very reliable. However, for a helmet light, I'd recommend a HID unit. I like the idea of having a combination of HID and halogen because HIDs have a bit of a warmup time while halogens are near-instantaneous. OTOH, HIDs typically are brighter and have a longer runtime.