Upgraded version: The solar light has been updated to 4 LEDs, and the solar panel has a larger area (7.9*3.0cm), which allows it to catch more sunlight. 10*8.3*3.1cm Best Performance: Customized 2V 120MA monocrystalline silicon solar panel achieves up to 18% conversion rate. Professional design and test the beam angle so that the solar panel can expose light from the sun to the maximum. Easy to install: These solar lights can be installed anywhere in the yard where they can absorb the sun's rays. Installation is quick and easy, requiring no wiring. Just screw it on the surface (screws included) Water Resistant and Durable: IP44 Water Resistant.There are 2 holes under the light to release water, they can release water in rainy days. Solid stainless steel construction to withstand years of rain, snow, ice and of wind. Perfect for illuminating stairs, paths, walls, patios, gardens, lawns, fence posts etc. Perfect for areas where electrical power is unavailable or dark spaces About us: Solar Stair Light Specification: Solar panel: 2V monocrystalline 120MA Type of LED: Projector Light Source: 4PCS LED Light color: white (bluish tones) LED power: 0.12W Lumen: 30LM Battery: Ni-MH AAA 1.2V 600MAH Material: Stainless Steel + ABS + PC Dimension: 10*8.3*3.1cm Net weight: 100g Warm Tips: Please install the lamp higher on the step to avoid damage from prolonged immersion in water (please do not soak in water). Setup and installation: A. Press the AUTO/OFF button, keep the lamp model "AUTO" B. Drill two 7mm diameter holes in the stair. The horizontal distance of these two holes is 76mm. Then plug the supplied plastic plug into the holes and screw the bolts into the wall until the bolt head protrudes about 5~8mm C. Hang the solar stair lights on the screws (2pcs) and make sure they are stable. D. Please place the light under normal sunlight 6-8 hours before using Package includes: 12 x Solar Powered LED 12 x Set of screws 1x Instruction Manual