When buying/ordering led lights it would be smart to read up on lumen vs watt. Wattage doesn't make much sense for led lights, especially not if it's pure marketing when mentioned, rather than a useful number. Wattage is an indicator for electricity use (and I guarantee there are no solar/battery fed led lights that use anywhere near 100W). Much better to get informed about actual lumen (amount of light) produced and on the size/type of battery, capacity of battery and of the solar panel than to rely on phony comparisons with oldfashioned bulbs.
I'm by no means an expert, but I believe this is solid advice.