led style...?
Any advice on which style. I'm going with warm white T10 base Which do you recommend?....flat array or round (cob) array for over head lights? or
Forum Discussion
Thanks guys for helping me with LED terminology and tech info.
With the old-style LED "bulbs" through trial-and-error I found that 2.7 WATTS is about the maximum a lamp can consume and balance thermal emissions through whatever matrix is used in the RV bulb replacement industry.
To increase above 2.5 watts means increasing the size of the matrix (won't fit the hole or fixture) or utilize an aluminum heat-sink. I clamped 2 three watt Bridgelux LEDs to a 2 X 3" 1/4" heat sink with 8 fin count. Applied 8.2 vdc the max OEM milliamps recommended. Set.the critter into one of the vacated fixture holes in my bus. Turned it on for 20 min.
OUCH! I could not measure instant temp but that fixture got way too hot for my liking. I'll bet my fingers suffered 200+ degrees F. My hopes of burying a thermocouple and continuing the "experiment" were dashed.
The bus overhead is encased in closed cell foam so the heat sink had little opportunity to shed BTUs.
Providing brighter lamps is going to be a challenge for the industry. BTW the power supply for the Bridgelux LEDs was divorced from the fixture. Open air.
With the old-style LED "bulbs" through trial-and-error I found that 2.7 WATTS is about the maximum a lamp can consume and balance thermal emissions through whatever matrix is used in the RV bulb replacement industry.
To increase above 2.5 watts means increasing the size of the matrix (won't fit the hole or fixture) or utilize an aluminum heat-sink. I clamped 2 three watt Bridgelux LEDs to a 2 X 3" 1/4" heat sink with 8 fin count. Applied 8.2 vdc the max OEM milliamps recommended. Set.the critter into one of the vacated fixture holes in my bus. Turned it on for 20 min.
OUCH! I could not measure instant temp but that fixture got way too hot for my liking. I'll bet my fingers suffered 200+ degrees F. My hopes of burying a thermocouple and continuing the "experiment" were dashed.
The bus overhead is encased in closed cell foam so the heat sink had little opportunity to shed BTUs.
Providing brighter lamps is going to be a challenge for the industry. BTW the power supply for the Bridgelux LEDs was divorced from the fixture. Open air.
