Effectiveness of Sunscreen, Kit, Kit Includes: 15ml SPF 15, 15ml SPF 30, 1 Box Microscope Slides, Electromagnetic radiation in the UV range of the spectrum cannot be perceived by the human eye. Using the Neulog* UVB sensor designed to measure UVB radiation.
LED grow light, 24inch, high performance strip, perfect for a wide variety of plants, Sleek, rugged aluminum housing provides cooling-technology that eliminates unwanted heat, Light Output: 2,640 lumens, Power Consumption: 24W, Number of LED Diodes: 48, Color Temp: 6400K