This is my newest helmet light for safety while commuting. It’s similar to my previous one but was designed to be lighter.
It was powered by 3 rechargeable AA batteries. The unused battery slot was used for the circuitry. It used AMC7135 LED drivers so that 3 AA batteries could be used instead of 4 for stability.
The front light was warm white for preserving night vision and had a narrow beam pattern.
The rear light was wide-angle and installed on a self-levelling mount to make it consistently visible.
It weighed around 175g. With less weight on the helmet, it should be easier on the neck and back. It’s possible to go even lighter by using 3 AAA batteries instead, but you’ll need to recharge them more often.
The light was programmed to have four settings in total. It has two settings for being seen during the day, and two for seeing at night. On its lowest setting, it lasts around 40 hours, and on its highest setting, it lasts approximately 6 hours which I think is reasonable.
Here are some pictures of the older helmet light. It used 2 18650 cells and had more LEDs. It weighed about 350g, about twice as heavy as the newest version!
Do you have any suggestions for improvements? If so, please share by commenting below!