LED comparrison
I know that Candlepower is outdated but could you tell me how much THIS lights up inside a camper compared to an 1157? Thanks
Forum Discussion
myredracer wrote:
You seem to know your lighting stuff. Is there any way for the typical consumer to decide what to buy in terms of light output vs number if SMDs and maybe wattage/current? How truthful or realistic are lumen output claims between sellers or manufacturers? Are there better quality LEDs that would be a better choice?
I'm still learning. And this technology is changing. Westend and others pretty much answered the question - number of diodes for the same total lumens can vary because the board can be running a higher or lower current.
What an average consumer should remember, is that his old 18-20W bulb has output about 300 lumens and color temperature 3000K. Most LED sellers specify both lumens and color temperature.
For a particular seller that I mentioned, 300 lumens would be a board with 24*5050 or 48*1210, unless otherwise specified. If you go through their inventory, some boards are labeled "super bright", and then they have either higher lumens per same number of diodes or a lower number of diodes per same total lumens.
How truthful? Hm... This is China, QC has never been their strong side. Lumens claims are mostly truthful, but you might run into a bad batch (or a seller). Color varies more often.
Lumens per watt? For LED it's about 70-90. Depends on the color too.
There are no quality brands in this pile. Seems like every rice farmer now is cobbling up either LEDs or solar panels in his shack :)
