Low Voltage Outdoor Lighting: Replacement Breaker(s) for your Power Supply/Transformer Sep 13th 2018 For low voltage outdoor lighting and low voltage indoor track lighting, our B-frames are a perfect fit! Both miniature in size and reliable, the B-frame series is used frequently by manufacturers of low voltage power supplies/transformers and is a Tags: #outdoorlighting #lowvoltagelighting #tracklighting #Powersupply