The 1500mW – 2000mW Blue Laser is very powerful. It’s almost the most powerful blue laser pointer .  Blue laser pointers are the strongest in intensity and igniting power. However, they are not the brightest.

Wavelength: 450nm
Output Power: 1500mW
Operation Temperature (℃): 15℃～＋35℃
Voltage: DC7.4V
Battery: 16340*2
Dimensions: 6M ≤Φ10mm

There is no limit on the strongest laser you can legally own in the United States. However, under federal law as governed by the FDA, any laser above 5 mW must comply with FDA/CDRH laser product requirements for labels, safety features, quality control and more.