Ciata Lighting LED Red Exit Sign & Emergency Light Combo with Battery Backup Long lasting, efficient ultra-bright white LED lamp heads High-performance chrome-plated metalized reflector and plastic lens for optimal light distribution Adjustable LED lamp heads provides optimal center-to-center spacing Long-life, maintenance-free, rechargeable NiCd battery Fully automatic solid-state, two-rate charger initiates battery charging to recharge a discharged battery in 24 hours