SuPrBuGmAn
Contributor
My point 

Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
We are a dealer for both and IMO, customer service is great for both. We do a lot of boat diving here in the NE and things get banged around a lot. We haven't had any issues we either company's bulbs. Locally the 21 HID have been the canister of choice. Just like with Light Monkey, if you don't have a local dealer to trust, just send it back to Halcyon directly and they will take care of it.
I went through 5 brightstar bulbs during actual diving, within about 2 years. I never dropped them on granite, instead I just ruined them under their intended purposes.
Love my LED.