XHP50 Headlamp Battery Questions

Hi

could someone please tell me what mAH rating and discharge current of battery i need for this lamp?

and also do they need to be protected /unprotected type batteries

https://www.ebay.ie/itm/5000-LM-XHP50-LED-Headlight-Rechargeable-Lamp-Flashlight-Head-Light-Lamp-18650/202497422630?ssPageName=STRK%3AMEBIDX%3AIT&\_trksid=p2057872.m2749.l2649

thank you

This light is a bit unusual in that it requires three 18650 batteries while most headlamps use only two. It will work on any 18650 battery but if you are really interested in a long run time between recharges, try NCR/Panasonic 3400 mAh batteries. Here in the USA they cost about $6 each on eBay. I tested a pair of the NCR batteries in a bike headlight that uses two 18650 batteries. It ran between 2.5 and 3.5 hours using the cheap $2.50-$3 Trustfire/Ultrafire batteries rated at a fictional 5800/4000 mAh but 16.5 hours (in flashing mode) with the NCR/Panasonic batteries. Shipping Li-ion batteries internationally these days seems to be a big problem so you may want to find sources for them within Ireland.

Well, it’s not expensive, that’s for sure.
But is it what you want?
I think it will run pretty hot on high mode, since it only has the surface area of the head to shed the heat.
Below that you only have one mode.
Chances are it will be chopped with visible or audible PWM, because that’s the cheap solution, usually.
Looks like an e-switch to switch on, of and select modes.
You may be forced to click the switch through low and strobe mode to turn it off.
I assume they use a cool white (maybe blueish) LED.
I suspect they use a fake Cree XHP50, which will do the job, but usually very cool white and a bit less light per Watt power.
But in all, it’s probably not a hot rod light, so you’ll be okay with 3x the famous Panasonic 3400mAh.
This may be a good store for you, but i don’t know if shipping to Ireland ruins the deal:

You can find 18650 there with better current capabilities too.
Those 3400mAh Pannies can’t push much current.