One of those chips will likely be providing a PWM signal for the Hi/Lo function. It may also be controlling LED current in some other way. You might get away with wiring direct. You would, of course, then lose the Hi/Lo option and might over-drive the LED(s).So I can't just remove these chip and wire direct?
Depends on the switch. If it is an momentary on/off, then the chip controls the actual turning on and off of the LED. If the switch is an alternate-action (push-on / push-off) then you might be able to wire the switch directly to the LED (and its current limiting). Hmmm ...Thank you all for your replys so I can't just remove these chip and wire direct?