When I bought the light many years ago It worked great and was plenty bright.  I took to strapping it onto the handlebars of my bicycle (with a pad to prevent damage) for commuting home at night from work.  I really like the quick forty five minute recharge cycle and I have two batteries so is easy to change out.

No other bike light I have found at any price comes close to that quick charge and simplicity.  Anyway . . . the bulbs eventually went after LOTS of use and I went looking for new ones.  At my local tool supply I found them and headed for the counter.  NINE DOLLARS ! ! ! !  (for two bulbs; now ten plus).

That's stupid I exclaimed !  For twelve volt flash light bulbs.  I can get the same thing at the local mom and pop hardware store for less than a dollar each; dollar sixty nine tops.  Five dollars each from Dewalt what a mark up !  Thievery !  etc., etc., etc., etc.,

OK I am singing a different tune now.  I just "invested" in two genuine Dewalts after several years of using the hardware store ones.  Partly because the cheep ones are getting hard to find and because I remembered the light being plenty bright back when new and hasn't  seemed that way for a while now.  Even allowing for the darkening that happens to the glass on the bulb over time

I put in the new bulb and ran it for a charge worth.  Quite a difference.  The light out put is whiter than the basic cheep bulbs, the spot on the road is larger for the same pitch, it actually seemed to get brighter on the second use even though the battery was lower annnnnnd it ran longer than with the cheep bulbs for the same charge.  I can say that because the run time is within a minute or less for each commute period.  I guess I am back with Dewalt bulbs for the difference they make.
When I bought the light many years ago It worked great and was plenty bright. I took to strapping it onto the handlebars of my bicycle (with a pad to prevent damage) for commuting home at night from work. I really like the quick forty five minute recharge cycle and I have two batteries so is easy to change out. No other bike light I have found at any price comes close to that quick charge and simplicity. Anyway. . . the bulbs eventually went after LOTS of use and I went looking for new ones. At my local tool supply I found them and headed for the counter. NINE DOLLARS! ! ! ! (for two bulbs; now ten plus). That's stupid I exclaimed! For twelve volt flash light bulbs. I can get the same thing at the local mom and pop hardware store for less than a dollar each; dollar sixty nine tops. Five dollars each from Dewalt what a mark up! Thievery! etc. , etc. , etc. , etc. ,

OK I am singing a different tune now. I just "invested" in two genuine Dewalts after several years of using the hardware store ones. Partly because the cheep ones are getting hard to find and because I remembered the light being plenty bright back when new and hasn't  seemed that way for a while now. Even allowing for the darkening that happens to the glass on the bulb over time

I put in the new bulb and ran it for a charge worth. Quite a difference. The light out put is whiter than the basic cheep bulbs, the spot on the road is larger for the same pitch, it actually seemed to get brighter on the second use even though the battery was lower annnnnnd it ran longer than with the cheep bulbs for the same charge. I can say that because the run time is within a minute or less for each commute period. I guess I am back with Dewalt bulbs for the difference they make.