The emergence of LED lumes in my city began with GE Evolve Scalable, next OVF, and now this. It's the first 250 W HPS equivalent used in this city. I find the extruded aluminum heatsinks atop all diodes quite sufficient.
309 is the wattage. So these must be 400W equivalent. This seems to be the new LED NEMA tag. GE uses this stle NEMA tag and now this company does too... BTW, why are these poles so far away from the road?
Woah, the city would never put 400W HPS on poles this low, not sure if LED changes the game. And luckily I know why they are far from the road. All new arterial roads here are designed to have a bike path on the side, so I suspect there will be a nice wide one between the pole and curb. All new roads are also to be FCO HPS, but we'll see if that trend is short lived, and it's all LEDs going forward.
The LEOTEK fixtures that my city are using have these same wattage labels. They only have 3 different wattages being used. 49 watts replaced the 100 watt HPS, 93 watts replaced the 150 watt HPS, and the 183 watt fixtures replaced both 250 and 400 watt HPS fixtures.
they might have lowered the pole height for the LEDs. i think either Joe or Model25fanforever has a pic of LEDs on a freeway in Ontario that have shorter poles and this style LEDs too if i'm not mistaken. i heard we'll be getting our first LEDs on the freeway here within the next year in the heart of Providence, RI.
i wonder why with LEDs they don't use regular wattages like with HID. like why not 310 instead of 309 or 50 versus 49 or 95 instead of 93?
Yeah they sorta look like these but the ones in this pic are longer:
The only reason I could think of why LED uses odd wattages is to match the lumen rating of HID so it's a one to one replacement.
I still don't think it is one to one though since the majority of LED streetlights have a much tighter beam than the HID lights (especially drop lens) and need a closer pole spacing in order to have a similar distribution. You can that in my pic where the LED lights are spaced closer on shorter poles as compared to the old HID truss poles (spaced for 400w MV, later converted for 250w HPS).
thanks yuandrew, never would have assumed it's a cooper, looks nothing like them. I just visited their website, I had to click the pdf brochure to discover this one model does come in several bodies... And son-of-a-gun, I just noticed cooper lighting was acquired by EATON Industries! Looks like they never had a lighting division prior though.
@Mike, my city seems to be using LED lights spec'd at a lot brighter for the usual HPS wattage. For example, a new residential street that calls for low 70 and 150W HPS used OVF-LEDs, not OVH-LEDs (I bet the waatage is close to 250W HPS)...
Whaa, these boards and not OVF-LEDs like the Queen & Chinguacousy subdivision? :/. I have a feeling the select L.E.D. projects in Brampton are developer specified and installed, which could be why we're seeing new neighbourhood of the same light requirements using totally different models (Cooper OVFLED/Cooper NVN/GE Evolve). Like the irony is that the city is doing neighbourhood refixturing with OVF-HPS now, I don't get why.
What area is that subdivision?
This is Cloverdale the whole area got the new LED's too to replace the post tops twistpaks and underbraced powerlites. They were installed onto the new poles yesterday afternoon
Not surprised actually, I feel you. Ive come by here at night. I think they should lower the brightness on some of them because its like staring at solar eclipse
i wonder why with LEDs they don't use regular wattages like with HID. like why not 310 instead of 309 or 50 versus 49 or 95 instead of 93?
The only reason I could think of why LED uses odd wattages is to match the lumen rating of HID so it's a one to one replacement.
I still don't think it is one to one though since the majority of LED streetlights have a much tighter beam than the HID lights (especially drop lens) and need a closer pole spacing in order to have a similar distribution. You can that in my pic where the LED lights are spaced closer on shorter poles as compared to the old HID truss poles (spaced for 400w MV, later converted for 250w HPS).
@Mike, my city seems to be using LED lights spec'd at a lot brighter for the usual HPS wattage. For example, a new residential street that calls for low 70 and 150W HPS used OVF-LEDs, not OVH-LEDs (I bet the waatage is close to 250W HPS)...
What area is that subdivision?