Wanted to give it a try: Spent an hour making a new logo for the BLF L1 lantern. Tried to post the image here...never could make it work. So frustrating. I have read to tutorial...it looks so easy. My forum name is haunting me.
I have tried Flickr and google drive...both failed.
So to take 400+g lamp it is good thing for mountain treks?But 22g ml-102 it is bad one?)
It is camping lamp. When weight is crusial , one takes only small headlamp.
This is true. The lantern will not likely be in a backpack. It will be in a tent, or in a camper, or in a car boot, or in a cabin, or used at home for outside and emergency lighting. Only a very small percentage of users will ever carry it in a backpack.
The power bank makes it a one stop solution for power outage or camping use, especially when combined with a folding solar panel.
It is well worth it in my book, adds far more than it takes away. Grab 2 items (lamp and panel) and you are good to go for sustainable power and light, or leave the panel at home if it is just a weekend. Store USB cables in the solar panel pockets and/or in a carry case for the lantern.
this is the exact reason behind having a built in USB bank feature with the charging in feature. with a 10 or 15 watt solar panel it can keep your phone going and the darkness away.
I forgot to mention that the Active-Semi EA2813QY development module using the reference design is available from Mouser, if you wanted to evaluate it or build into a prototype. It costs about £50. It would also give a good start for PCB layout.
I would still like to have the power bank feature, even if I’m not likely to use it.
It’s not like it’s going to hurt anyone having it, realistically it’s also not going to drive up the price noticably compared to just a charging cicuit. Granted, it may complicate the driver firmware in case it needs to be configured from the MCU, but that’s a small price to pay for something useful that adds value to the light.
@KevinZA1988, thanks for speaking up. Your post revealed an accounting error on my part, actually two of them. I expect to get a pay cut as a result, but I am trying to make it up by editing my previous post where I double dipped your numbers.
Catching up to a missed post, Ilmatic you are number 923 on the interest list.