A significant step up to the Serfas 500 light is the Serfas 1500 which claims a 1500 lumen output. This light is a high-end head unit with separate battery light which retails for $390.
Beam pattern is great as it has a big center spot with a huge, wide halo around it. The light combines good peripheral beam with a far-reaching center throw. The case and switch ergonomics seem excellent as there is a positive click when activating the switch. There’s three light modes and a flashing mode to scroll through before the light shuts off. Another way to shut the light off is be depressing the switch for about 2 seconds. The light dims to shut-off rather than an abrupt cut-off like most lights. This is a nice touch that gives the impression of quality.
One thing we noticed with this light is it stayed cooler than competition during our bench test in front of the fan. That means that it has excellent heat dissipation qualities and it will not only protect the circuits better but it will also stay brighter longer under hot or non-moving conditions. Most lights over 1500 lumen just heat up on High mode even when directly in front of a fan. Serfas seems to manage heat very well and the head unit stays the coolest in our bench test. They seem to have accomplished this with good air flow porting and providing a lot of surface area to dissipate heat. This means that the light is well-suited for high heat conditions or situations where the rider is stopped a lot. This also means that the light will not have to step down in light output to protect the circuits from heat damage.
- Price: $390
- Claimed Lumens: 1500 Lumens
- Light Head Weight: 153 grams
- Installed Weight:490 grams
- Run Time: 3 Hours
- Measured MTBR Lux: 133 Lux
- Measured Lumens: 1505 Lumens
Handlebar mounting is done with a quick release mount that works quite well once snug. It can be aimed left to right. The quick release lever is non-intuitive at first though as it seems to be reversed. Mounting on different diameter bast is a bit tricky as two pins have to be aligned in the right holes to get the proper bracket size. There is an included helmet mount as well as this head unit can be mounted on the top of the helmet as well. At 153 grams, the light head is not too heavy to mount on the helmet. Also, it is low profile enough that it is decent for low-branch clearance.
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