backup light

n.

倒车灯；

POWER CONTROL AND BACKUP LIGHT FOR VEHICLE REARVIEW MIRROR
Direct optical control: a lightweight backup consideration
Application of DC-DC Boost Converter for Solar Powered Traffic Light with Battery Backup
A Distributed Route Computation Method to Promote Bandwidth Sharing between Backup Lightpaths
One Backup Navigation Scheme Based on Magnetic/Starlight Measurement with Remanence Calibration
A Lightweight Virtual Machine Image Deduplication Backup Approach in Cloud Environment
Analysis and design of LLC ballast in Gm mode for photovoltaic energy backup LED streetlight
Adsorption backup following light-emitting diode-irradiated photocatalytic unit for control of low-degraded toxic gaseous compounds
Design & Implementation of Emergency Backup Light
Design of backup light based on negate routine engineering