CREE beta XMC LED CHIPS
Cree sent me a box of beta LED chips to test. I arrived in USA this afternoon and will leave after five doctor appointments tomorrow starting at 0800. Yes 5 in one day. Neurosurgeon is last. Cardiologist will tell neurosurgeon if I can withstand 3-1/2 hours of surgery.
Chips are supposed to maintain +- 3% lumen stability from 12.2 to 14.4 volts. Impressive. 179 l/w which is also impressive. These chips need no driver or resistor for 12 volt operation. 130 degree beam spread. They are silicon carbide.
I am going to do thermal tests on the 11 watt chips. I will email someone with some opinions so they can post. FYI the 3K Kelvin variety XME-E like with ALL LED chips render far less lumens per watt <34%
Also picking up beta difuser panels with one type allowing 90 percent passage of light. it's going to get interesting
Do not have internet down there. and am bailing out to come north for surgery in a couple of months. cannot even dial USA from there now. Like living in Yemen or Hindukush. These BETA items were arranged last June. CREE just blows Bridgelux and Osram into the weeds.
Gotta go sleep sleep. Saludos y salutacciones a todos.
Chips are supposed to maintain +- 3% lumen stability from 12.2 to 14.4 volts. Impressive. 179 l/w which is also impressive. These chips need no driver or resistor for 12 volt operation. 130 degree beam spread. They are silicon carbide.
I am going to do thermal tests on the 11 watt chips. I will email someone with some opinions so they can post. FYI the 3K Kelvin variety XME-E like with ALL LED chips render far less lumens per watt <34%
Also picking up beta difuser panels with one type allowing 90 percent passage of light. it's going to get interesting
Do not have internet down there. and am bailing out to come north for surgery in a couple of months. cannot even dial USA from there now. Like living in Yemen or Hindukush. These BETA items were arranged last June. CREE just blows Bridgelux and Osram into the weeds.
Gotta go sleep sleep. Saludos y salutacciones a todos.
