Solar Security Light, LONRIC 38 LED Outdoor Solar Energy Motion Sensor Light with 3 Modes Waterproof Solar Lighting for Porch Patio and Yard3 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 ...
Whether or not you are taking the NABCEP Entry Level Exam, learning the material covered in this book is the best investment you can make towards your place in the solar industry. This book explains the science of photovoltaics (PV) in a way that most people can understand using the curriculum which reflects the core modules of the NABCEP Entry Level Exam. Providing complete coverage of the NABCEP syllabus in easily accessible chapters, addressing all of the core objectives that will aid in passing the PV Entry Level Exam including the ten main skill sets: PV Markets and Applications Safety Basics Electricity Basics Solar Energy Fundamentals PV Module Fundamentals System Components PV System Sizing Principles PV System Electrical Design PV System Mechanical Design Performance Analysis, Maintenance and Troubleshooting You will learn the importance of and how to survey a site, how to use the tools that determine shading and annual production, and the importance of safety on site. With technical math and equations that are suitable and understandable to those without engineering degrees, but are necessary in understanding the principles of solar PV. This study guide is written by Sean White an IREC certified Solar PV Master Trainer, Electrician, Professor and Installer. Sean has prepared thousands of students to take the NABCEP Solar PV Entry Level Exam.
Made of ABS Plastic. Features Super Bright 1-Watt 2X LED. 11 continuous years of burn time on LED or 22 years of burn time when in the on position only at night. 8 hours charge in sunlight or room light will provide up to 10 hours of continuous light - can be charged over and over again. Holds a single charge for over 3 years and comes fully charged. Does not need to be stored in the sun - throw it in your glove box or drawer and three years later, just turn it on. Back up battery has a 7 year shelf life. Roll it up in a sleeping bag and forget you own it - turn it on 7 years later; then simply put it in the sun or room light for a day and have a 3 year solar charge again. Features power source indicator lights - red light is charging, yellow light is solar power, and green light is back up battery power. Treat it like a regular flashlight as it is always ready to go because it's always gathering light (recharging). You won't need to replace batteries that cause landfill pollution. Hybrid Solar Lite is 100% water proof up to depths of 80 ft. and it floats. Extreme temperatures do not affect the light - very durable and guaranteed for life. 4.75 in. L x 1.875 in. W x 10.25 in. H ( 0.35 in.).