I cut a hole in the back of the RX3 headlight assembly so it is large enough for me to change the light bulb without having to remove the rear cover. I also placed a small hole at the bottom of the headlight assembly to allow for water to escape.
The hole also allows heat to escape the headlight easily, helping to prevent any possible damage to the reflector from using a light bulb with higher power.
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Spud
"Never argue with an idiot. He will drag you down to his level, and beat you with experience."
Mark Twain
2015 Zongshen ZS250GY-3 (RX3)
2006 Zongshen ZS200GY-2 (Sierra 200)
2005 Honda XR650L
2004 Honda CRF250X
1998 Kawasaki KDX220
Mods made to my Zongshen ZS200GY-2:
http://www.chinariders.net/showthread.php?t=6894