Solar Energy: The Physics and Engineering of Photovoltaic Conversion, Technologies and SystemsThis comprehensive textbook takes you through everything you need to know about solar energy from the physics of photovoltaic (PV) cells through to the design of PV systems for real-life applications. Solar Energy is an invaluable reference for researchers, industrial engineers and designers working in solar energy generation. The book is also ideal for university and third-level physics or engineering courses on solar photovoltaics, with exercises to check students’ understanding and reinforce learning. It is the perfect companion to the Massive Open Online Course (MOOC) on Solar Energy (DelftX, ET.3034TU) presented by co-author Arno Smets. The ...
Solar Security Light, LONRIC 38 LED Outdoor Solar Energy Motion Sensor Light with 3 Modes Waterproof Solar Lighting for Porch Patio and Yard
3 Modes (Change by pressing the On/off Switch) 1) Dim Light Mode : The light is dim at night when there is no motion detected. But when there is motion detected, the light auto as strong light for about 12s and dim again after 12s. 2) Strong Light without Dim Light Mode : When there is motion deteced, the light auto on for 12s, but the light will be totally off if there is no motion detected or after 12s. 3) Always on Mode : The light will keep on for 5 hours at night and charged by sunlight at daytime. Kindly Note : 1. Please turn the light on by pressing the ON/OFF switch for 3-5s and set the mode before installation. 2. Every time you press the switch to change the mode, the light will be flashing twice until shuting down. Easy Installation Fast and easy installed even by a lady with the included screws, no wire, no need electrician. Please note : 1) Please charge the device fully before the first using 2) The 18650 battery is replaceable if there is problem with the solar light Feature ◆ Solar Panel : 5.5V/2.5W 18% conversion rate ◆ Output Power : 3.2V/4W ◆ Lithium Battery : 3.7V/4400mAh ◆ Light Source : 38 LED (0.2W/28Lumens) ◆ Suitable Installation Height : 2~4 Meters ◆ Luminous Flux : 500 Lumens ◆ Induction Angle : 120 degrees ◆ Induction Distance : 5~10 meters ◆ Lighting Area : 15㎡~30㎡ ◆ Light Color : White ◆ Material : ABS + PC ◆ Color : Black ◆ Weight ：0.4 KG ◆ Size : 210 * 115 * 85 MM Package Content 1 * LONRIC 38 LED Solar Powered Light Waterproof Motion Sensor Wall Light 2 * Expansion Pillar-hige 2 * Screws 1 * User Manual