Don't expect support for older generation batteries and lights; was told to upgrade to the new model after they were unable to resolve the problems with my old battery. Customer service and sales rep knowledge is severely lacking and have on two separate occasions provided me insufficient components for the headlight kit. The problem persisted even after providing pictures of the components and describing that there was a missing connector.
Cliff notes version: investing in reputable brands with proven track records far outweighs the time and money lost from not having an effective light source and dealing with ineffectual customer support/sales reps.