That's a JST-SM. Easy to make your own with a box of connectors and a terminal crimper (need the 2.5mm die), or snip and use your connector of choice.
If you're just adding a headlight and nothing else, there are many that support a wide range of voltages. I used this one: https://www.amazon.com/dp/B00XVAEP8E
You should be able to get any light rated for 40-60V and will work fine.
Find a light for non-branded electric bike or golf cart. Search on aliexpress ebike light and be prepared to solder your own connector.
From a quick google search: https://www.amazon.com/LEORX-12V-80V-Motorcycle-Headlight-Accessories/dp/B00XVAEP8E/
I have seen a few people who have used this Headlight on their Juiced with no problems.
Hate to necro. But I am wondering if you came up with a viable solution? I tried https://www.amazon.com/LEORX-12V-80V-Motorcycle-Headlight-Accessories/dp/B00XVAEP8E/ref=lp_10670500011_1_6?srs=10670500011&ie=UTF8&qid=1524337817&sr=8-6
But that light only works for about a minute on the Radcity and then shuts off. I don't really want to spend a few hundred like some suggest. I have a light that has rechargeable batteries but I always forget to recharge it. Which makes bad for commuting to work as I work nights. Thanks in advance to anyone who might have figured this out.
Twelve bucks. Pick up a switch and fuseholder for another ~5 each. Just wire it in where the battery meets your controller. The voltage stepdown is built in so you don't have to think about it, and it's... really goddamned bright. I fashioned a different mount for mine because the included one is flimsy. There are two threaded holes in the body so you can get creative.
I just cut, soldered, and used good glue filled shrink wraps. Im sure if you are not comfortable with that type of installation you could find connectors to plug it right in.
LEORX 12V-80V 20W Motorcycle E-bike LED Headlight Lamp Car Accessories (Black) https://www.amazon.com/dp/B00XVAEP8E/ref=cm_sw_r_sms_apip_cnhZRX91yCbdx
LEORX 12V-85V 20W Motorcycle E-bike LED Headlight Lamp Car Accessories (Black) https://www.amazon.com/dp/B00XVAEP8E/ref=cm_sw_r_cp_api_glt_fabc_KG5VZBNY18TG6MK0ZHZ4?_encoding=UTF8&psc=1
https://www.amazon.com/dp/B00XVAEP8E/ref=cm_sw_r_cp_apa_glt_fabc_PNE08627ZEKD060SYNFY
No converter needed and it's super bright
https://www.amazon.com/gp/product/B00XVAEP8E
This is the light, I used two and soldered some XT30 connectors to the wires, and I primarily use these for lower splash; the main bike light is for seeing ahead so I don't blind people. I just got tired of USB rechargeable lights so I wired these directly.
wow really ? what exactly happened with it? i just ordered and installed a very similar light and am very happy with it.
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https://www.amazon.com/gp/product/B00XVAEP8E/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
Yeah pretty much. But if your light works at all like this...
https://www.amazon.com/LEORX-12V-80V-Motorcycle-Headlight-Accessories/dp/B00XVAEP8E
...you should be ok. For example, this light claims to work with 12V-85V.
https://www.amazon.com/dp/B00XVAEP8E/ref=cm_sw_r_cp_apa_i_dRFoFb7RKTEYR
I think I will give this a try and see what happens. I am going to attempt to mount it to the top of the fork cross bar
I bought an even better light than the one offered by Bolton or Rad, on Amazon. It cost LESS than a whopping $20, and is SUPER bright, 2000 lumens. All you have to do is open up the Rad original light, and disconnect the wire, and splice it onto the new light. I soldered it, but wire caps or butt connectors would work, but I recommend solder. It made an AMAZING difference! I have not seen the one RAD offers, but I guarantee it is not better than this one!
https://www.amazon.com/gp/product/B00XVAEP8E/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
I don't doubt you're going this fast, I just recommend that people who regularly exceed 25 mph (on streets with 2-way traffic or many cross streets) use lights bright enough to grab attention in the daytime. Here are very easy ones to install.