Review on Switchable Horizontal Self-Leveling Professional Visibility System by Andrew Schobinger

I was very impressed with the difference in brightness and visibility between a green laser (like this one) and the old red beams. I really like the green line as it is very visible. I can successfully use it outdoors on cloudy days, and it also works well with a laser receiver on sunny days. It's very bright indoors, as is red, but to me the red beam is almost flickering and annoying to the eyes, while the green beam appears smoother and less annoying - this effect is amplified in total darkness. This laser is a fantastic addition to the product line as it combines a VERY BRIGHT AND VISIBLE laser for 360° horizontal and another vertical laser line that can give you precise and accurate 90° lines. There are some more details and usage information. I've been a contractor for 20 years and can't believe I've lived without a tool like this for so long. This device is a bargain and competes with lasers at 8 to 10 times the price. If you want a great laser - JUST BUY IT! You will not be disappointed!