Hi all. Forgive my lack of electrical lingo, but I have a question regarding a light fixture that is rate for 85-265v. I sell commercial LED lighting in the US market. This specific application is for an exterior install in a commercial building. Existing fixtures are 400w HID and typically are installed on a 277/480v panel. For my standard 120-277v rated LED fixtures, the electricians typically change at the panel down to 277v and they are good to go. My customer wanting to save some $ and thinking that I wasn't giving them the best deal I could, decided to go direct to China. The fixtures they have purchased have a sticker on them that says they are rated for 85-265v. Will they be able to operate them out of a 277/480v panel without blowing them up? Any input would greatly be appreciated.
Thanks,
Aaron
We have been testing some of these high bay LED lights for use on our DC overhead cranes, while I also notice that the label on the fixture stated 85-265 VAC, I noted in the small literature packet boxed with the fixture that the fixture was actually rated for 90 to 355 VDC/VAC which means they have a switched mode power supply with a wide input range, we have tried them on 120vac, 208, 277 and the 250vdc that they were intended to run on, these are a large round disk (about 14-16" diameter) looking fixture which are very thin top to bottom with a 1" set of NPT for a nipple to mount it to, it has many LED elements that all point down, we have left one running on 277 for a few days just to see if it would handle it and it did just fine, we wanted to make sure it would handle the Re-gen from the hoist of the cranes when they are in the lowering mode which we can get as high as 325 VDC of Re-gen voltage when lowering a heavy load, now we have had several of these fixtures in operation on our cranes for several months without any problems even with the Re-gen hitting over 300 VDC, they provide the light when the bridge blocks the overhead high bays, and yes they are all made in China.
Sorry for your loss of a costumer but this is what we are facing here, many company's are trying to cut cost and buying direct is one way they are doing it.