In practice light power, like all power needs to be handled responsibly. My eyesight is very poor, which is why I quit driving. I sometimes ride on dark country lanes. There are no streetlights. The darkness on these lanes is such that most city dwellers have never seen anything like it. So I feel entitled to use as much light as a car driver as long as I do not dazzle other road users.
Even when using high power, I tend to keep the main part of the beam focussed about twenty feet in front of me, rather than parallel with the road surface. If a vehicle approaches from the front, I either tilt the lamp further down, or switch to low power by pressing the illuminated button on the rear of the lamp. The lamp shell is aluminium, and acts a heatsink. It does get quite warm, so a fair amount of watts is being dissipated. Incidentally, the lamp comes with a harness so it can be used as a head torch, with the battery pack in your pocket.
To sum up, IMO this is a great effective lamp at a low price, provided it is used responsibly.
Even when using high power, I tend to keep the main part of the beam focussed about twenty feet in front of me, rather than parallel with the road surface. If a vehicle approaches from the front, I either tilt the lamp further down, or switch to low power by pressing the illuminated button on the rear of the lamp. The lamp shell is aluminium, and acts a heatsink. It does get quite warm, so a fair amount of watts is being dissipated. Incidentally, the lamp comes with a harness so it can be used as a head torch, with the battery pack in your pocket.
To sum up, IMO this is a great effective lamp at a low price, provided it is used responsibly.