AlexGT
Flashlight Enthusiast
I am wondering which would be brighter, a slightly overdriven Diamond Dragon from Arcmania bin "NY" or a more significantly overdriven "R2" bin Cree when run at 1500 ma?
Thanks!
AlexGT
Thanks!
AlexGT
They are both in the same range at that drive level....but the Cree has far higher surface brightness than the DD. Depends on the application but if throw is your aim the Cree is the way to go.I am wondering which would be brighter, a slightly overdriven Diamond Dragon from Arcmania bin "NY" or a more significantly overdriven "R2" bin Cree when run at 1500 ma?
Thanks!
AlexGT
They are both in the same range at that drive level....but the Cree has far higher surface brightness than the DD. Depends on the application but if throw is your aim the Cree is the way to go.
Is it possible that a DD would be a bit more efficient than a Cree when driven at 1.8 or so amps?.. and also.. the cree is well suited for an aspheric thrower, but how would they compare in reflector throwers..
Looking at the data sheet for the DD it does look like it is more efficient than the overdriven Cree. But although with really high drive currents you can get the DD to put out more light than the Cree it is over a larger surface area due to the larger die. No amount of overdriving the DD will get it to overcome the advantage that the Cree has in this area. This means if throw is your main goal the Cree is what you want. That is regardless of whether or not you use a reflector or aspheric. However if sheer output is what you want, go with the DD.Is it possible that a DD would be a bit more efficient than a Cree when driven at 1.8 or so amps?.. and also.. the cree is well suited for an aspheric thrower, but how would they compare in reflector throwers..
Looking at the data sheet for the DD it does look like it is more efficient than the overdriven Cree. But although with really high drive currents you can get the DD to put out more light than the Cree it is over a larger surface area due to the larger die. No amount of overdriving the DD will get it to overcome the advantage that the Cree has in this area. This means if throw is your main goal the Cree is what you want. That is regardless of whether or not you use a reflector or aspheric. However if sheer output is what you want, go with the DD.
Looking at the data sheet for the DD it does look like it is more efficient than the overdriven Cree. But although with really high drive currents you can get the DD to put out more light than the Cree it is over a larger surface area due to the larger die. No amount of overdriving the DD will get it to overcome the advantage that the Cree has in this area. This means if throw is your main goal the Cree is what you want. That is regardless of whether or not you use a reflector or aspheric. However if sheer output is what you want, go with the DD.