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The lighting industry seems to have a problem with names, a driver always was a device which regulated current, but for some unknown reason the lighting industry now call any DC power supply a driver.
It is like saying a station wagon is a type of car, so we will call all cars station wagons.
But also in your case it depends how the G4 bulb works as well. Inside an LED bulb is a real driver, i.e. a device which limits the current through the LED, this can be a resistor, a capacitor (if AC supply) or a pulse width modulated power supply, and the latter as name suggests gives pulses.
A DSLR camera will up to a limit work OK, but there is a limit, at around 1/280th second the whole sensor is exposed, so one very short flash will work, often around 1/20,000 of a second, but as the shutter speed increases the image is in real terms scanned, each bit of the sensor may be exposed for 1/2000th second, but it still takes 1/280th second to expose all the sensor.
There have been special flash guns developed to work with this, seems ironic called high speed flash, but really they are working at a lower speed. So have a flash duration of maybe 1/100th of a second, much slower than normal flash. So there is light for the whole scan of the image.
LED can work very well with cameras, but not all LED's it depends on the internal drivers, also the colour, I find a CD is the best, angle it at the light and you can see what colours are in the spectrum for that LED.
So you need a steady DC supply, and a lamp which also uses a steady DC supply, with a good colour rendering. One would think best is a battery, but no, this G4 may seem great, but reading the spec it says Voltage: 10v – 30v DC which tells me it has a built in pulse width modulated driver, so may flash, at may be a high rate so human eye can't see it flashing, but a camera can.
It is like saying a station wagon is a type of car, so we will call all cars station wagons.
But also in your case it depends how the G4 bulb works as well. Inside an LED bulb is a real driver, i.e. a device which limits the current through the LED, this can be a resistor, a capacitor (if AC supply) or a pulse width modulated power supply, and the latter as name suggests gives pulses.
A DSLR camera will up to a limit work OK, but there is a limit, at around 1/280th second the whole sensor is exposed, so one very short flash will work, often around 1/20,000 of a second, but as the shutter speed increases the image is in real terms scanned, each bit of the sensor may be exposed for 1/2000th second, but it still takes 1/280th second to expose all the sensor.
There have been special flash guns developed to work with this, seems ironic called high speed flash, but really they are working at a lower speed. So have a flash duration of maybe 1/100th of a second, much slower than normal flash. So there is light for the whole scan of the image.
LED can work very well with cameras, but not all LED's it depends on the internal drivers, also the colour, I find a CD is the best, angle it at the light and you can see what colours are in the spectrum for that LED.
So you need a steady DC supply, and a lamp which also uses a steady DC supply, with a good colour rendering. One would think best is a battery, but no, this G4 may seem great, but reading the spec it says Voltage: 10v – 30v DC which tells me it has a built in pulse width modulated driver, so may flash, at may be a high rate so human eye can't see it flashing, but a camera can.
