: It is heavily machined to act as a giant heat sink. However, because it generates massive amounts of heat, you are strictly limited to short "duty cycles" (e.g., 60 seconds on, 60 seconds off) to avoid frying the diode.

While consumer listings often boast massive wattage ratings (some sketchier sites claim 50,000mW or more), physics and legalities generally cap legitimate, accessible handheld laser diodes at around of true output. 🔎 Overview: The High-Power Handheld Market

: Rated at an eye-watering 15W (15,000mW), it claims to be the most powerful blue handheld laser in the world. It can etch wood, melt electrical tape rapidly, and cast a beam visible for up to 30 miles.

are widely considered the "hottest" or most powerful handheld lasers available for consumer purchase.