guys ive made cybs tek and ive got white cristals preeeetu white but ive smoked in a ligh bulb and im coughing a lot is this normal? ive smoked before the same cristals on a pip but leeees dose and i didnt coughed, could it be the lightbulb? or my dmt is bad?

This is your problem...Lightulbs are terrible for vaping...you burn the crystals rather than vaporise them.

Convection not conduction is what you need to do...(Hot air passing over the crystal...NOT hot glass burning them)
Read more on vaping properly and don't use that thing again.

When folks talk of using light bulbs, i always flash on someone smoking out of frosted, not clear ones. I know noone is that dumb, but still.. .that's not why you're coughing i hope. ..

And good advice cyb, I've been trying to talk a buddy out of using a 'bubble' to smoke spice and to use a mullein/chore sandwich method in a glass stem, which is still not ideal, but my technique and it works great .

Thanks for the concise information to give him, I've been giving these long explanations of why it won't work well, but it usually involves more of the difficulty than the ineffectiveness.

Check out "The Machine" described in the DMT Handbook. It's extremely easy to make and will help you achieve breakthrough dosages with minimal coughing (at least in my experience). Unless you have a GVG, it's the best way to vape DMT in my opinion.

Read my vaping guide in my signature.

Why not make some changa or enhanced leaf? I started out using an oil rig (freebase/meth pipe) and had very little success and wasted a lot of potent product. Light bulbs are even worse and potentially dangerous!

Enhanced leaf is so easy to make and things like mullein are incredibly smooth on the lungs plus it is almost impossible to mess it up while smoking it! Load that up into a regular MJ style pipe or bong (bong is more efficient) and rip it! Rip it good! You'll go far!

Peace