I have an adult science throughout the sky projector lamps, the lamp is used 2.4V 0.75A light bulb, but is too dark, this is the principle of pinhole imaging, put it in the middle of a large room, the wall will be very dark, SO, I want to change a light bulb, the dry by 2 3V the battery for the electric plug, although can be connected to the home circuit, but the resistance, brightness as battery light bulb can change what? The brighter, the brighter, the better, but the voltage must be enough! More consumption of electricity does not matter, but good results!!! What bulb should I change for?
LED lamp is the best kind of flashlight, if you light a dark pointIf the circuit part doesn't work, buy a cheap drunk flashlight on the street directly
If the circuit part doesn't work, buy a cheap drunk flashlight on the street directly
LED lamp is the best kind of flashlight, if you light a dark point
