Feature: 1. Made of Stainless steel material, strong, and rain proof. 2. Use for staircase, outdoor lighting. Specification: Model: LSSL10 Materials: stainless steel + internal PC plastics Light color: normal white Protection grade: IP64 Light source type: LED solar lamp Solar panel: 0.1W Rated power: 0.1 W Voltage: 2 V Sunshine time: 6-8 H Life: 10000 H Switch: on / off, automatic photosensitive function (switch on the back). Package size: approx.105*85*30mm/4.13*3.34*1.18'' Product size: approx.100*80*22mm/3.93*3.14*0.86'' Gross weight: approx.105g Net weight: approx.92g Light source: amorphous silicon solar panel, and the lamp can last for about 5-6 hours. Quantity: 4pcs Installation Method: There are two screw holes in the back, and the screws are attached. Note: It must be instalLED on the stairs where the sun can be heated, otherwise it can't be used. Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Package included: 4 X Solar Stair Lights 1 X Installation Bag