Great sales pitch.
Too bad most of the lights on the market are pathetic. Pathetic light output, pathetic solar panel which can barely charge the pathetic battery...... They don't illuminate much, don't charge reliable, and battery dies too early in the light.
And, solar light orientation is important as the battery needs to charge...works only on my 'south side' of the lawn where there is enough solar gain.
Most will work ok in the summer since we have long sunny days. But, they are all but useless in the shorter winter days. I've only found a couple that charge during the winter since they used very large panels(85mmx85mm) or remotely mounted 4x6" panels. Large remotely mounted panels require the same digging and sweating.
If you want a light with Cree LEDs, all you have to do is break out the soldering iron for the upgrade.