We are amazed at the varied claims made in advertising on the Net about grow lights.
Some companies want you to believe that measuring lights by the power that is used is the only way to evaluate a light. This may have been true when Thomas Edison invented the incandescent light bulb in 1878, but technology has moved on.
Many companies do not even offer the technical data that is readily available from Chip On Board (COB) LED manufacturers. For example, Cree makes thousands of different LED types, styles, efficiencies, and spectrum. It makes a significant difference if a light has a Cree CXB3590 (12,000 - 18,000 lumens) or a Cree CXB2350 (4,000 - 8,000 lumens).
Worse yet, some companies do not even offer a hint about the spectrum delivered by the COB. Make sure that you know the spectrum delivers the maximum value of light in the right colors.
BSF Grow always publishes the full set of data on our products. We conduct our own testing on light output using the industry-standard Apogee Light meter using the PAR range of 400 to 700 nanometers. And we are always ready to answer your questions on light. Please remember that it will take a full growing system to find out that the lower cost light just didn't deliver the power or the spectrum that is needed for full, lush vegetative growth and flower.