Sanwu Striker 7W 455nm Blue Laser Pointer Review 

Everyone interested in this should know that lasers are extremely dangerous, in that a person's eyesight can be permanently damaged by a focused beam of laser light of even a fraction of a watt. Even a brief glint off a shiny object can blind a person. Researchers in the field always wear protective goggles for this reason. These things should not be used as toys. I know because I worked in the field. Our rule was this: if you can see the beam, you are at risk. Our joke was: Do not stare at beam with remaining eye!

If they have lasers this powerful available to the general public, imagine the stuff that's classified.

Thanks for the mention man! Yeah, my diode died, i did use it for about 10 minutes constant on when it was -2c outside. Don’t copy me, lol.

Thank you for this review. I ordered one with the expander a few days ago, and with the multi-mode function.

I have their 3 watt Silver Series in 445nm and that’s pretty amazing and quite scary at times to use. Never ceases to amaze but 7 watts! Incredible! Great review by the way. :)

Appreciate you emphasizing the mandatory "off" time. Many people have ignored this resulting in a destroyed laser.

Thank you for the detailed content , nicely done thanks for posting !

I just read your review at the forum and now axintentaly I came up to your video, wow, nice video by the way

Excellent review!

Styropyro says hold my beer

It would make sense that the reason it unscrews in the middle is just for ease of manufacturing. As a CNC turner, I can assure you boring a long thin stainless steel tube isn’t easy, haf the length and you’ve saved a lot of hassle. Nice videos! 👍

Thanks for the review! The diode they use is actually a Nichia NUBM08 with the gball removed (open can).

Nice for lighting the grill.

Finally you got it! Congrats bro :)

Let's also mention this unit will blind your enemies permanently in 2 tenths of a second. Add a star adapter and you can blind 50 of your enemies in 2 tenths of a second.

Nice video, Sanwu definitely make some quality stuff.

Keep on those great vids

Good Job, I like your info!

Thanks for your very detailed and informative presentation. I am a long time fully trained and graduate of the LSA Laser Safety Course, as well as technician responsible for maintenance and upkeep of high powereed class 4 CO2, Nd/Yag, and similar industrial laser systems used in semiconductor and ceramic production. And as a hobby, I have designed laser light shows and control systems for entertainment effects, while understanding the dangers and precautions required to stay safe from any direct, reflected or specular potentially damaging effects. That said, I found this review, the first that I have seen by you specifically, to be refreshingly honest and free of any bias, while informing me of the specs that I need to know and the practical appearance and power effects as well as addressing you impressions of the available beam expander which is a tool that is not understood by most as to its method of reducing divergence, etc. So thank you, as I plan to be buying lasers in this class for a project that I am working on, and the published specs in the majority of such lasers are at best, almost fictional, and not specific enough to order a laser with confidence that it will perform to my expectations. I subscribed and look forward to your great detailed reviews/ demos and thoughts on lasers. Thanks John Millington

Thank you for great review

Looks like a Lightsaber, we're getting close

Wow....Scary powerful is cool and I'm in awe of this, but I'd like to see you get your hands on and review more exotic wavelengths. I really want to see a 488nm 😊

Just got this laser and I’m in love!!!

Great review, thanks for sharing!! 👍

With the beam expander it looks like a real light saber.

My jaw literally dropped and ran off what a absolute monster 😍😍😍😍😍😍😍😍😍

few days back i encountered videos showing striking lasers on airplanes are bad, now I'm getting this on my feed interesting

Absolute beast I want it!!

I bought myself a laser 303 it is really good you got to use it wisely

If I can't fill a swimming pool with pop corn kernels and pop them all from space I'm not interested.

Wow that’s got some serious power

I have one of these and with the beam expander i can focus it into a dot at over 100 feet away so it just depends on the person who builds it

I've got a 470nm 5 watt Sanwu Striker, and I can definitely say these lasers are weapons, every time I turn it on I am absolutely astounded. You can't go wrong with Sanwu.

Great review, convinced me to buy my own 7W Striker! But my experience has been different to yours. With the Beam Expander I am getting a nice, more or less circular dot at 500 yards plus, nothing like the line you were getting on your rock wall at around 150 feet. I guess you know the beam expander is adjustable? It has an adjustable thread in the middle. If you unscrew the thread all the way out, then attach it to the laser and steadily screw the adjustment back in, you should get a highly concentrated spot, no trace of that power sapping divergent line as seen in your video. Of course there may be some variation between individual Striker lasers which could account for your result. My only minor gripe with this laser is that the focus adjustment on the front of the host is a bit sharp and somewhat painful on the fingers. Otherwise this is an amazing piece of technology and every laser enthusiast needs one! OF COURSE IT IS ABSOLUTELY ESSENTIAL THAT ANYONE USING A LASER OF ANY POWER USE SAFETY GLASSES AND NEVER EVER POINT THE LASER AT ANY LIVING CREATURE OR AIRCRAFT, THIS IS NOT A TOY AND CAN CAUSE INSTANT BLINDNESS!!

holy hell that thing is awesome

Beautiful.

Very cool video. What type of protective glasses are needed for the Zeus X 7 watt 450nm laser pointer?

These class 4 lasers are exceptionally powerful. A single small mistake WILL result in permenant eye damage or blindness. I always use a heavy tripod and don't causally wave the laser around. I also prefer a good beam stop like a cliff or a tree and one must always do a proper aircraft check to insure no aircraft are in the air near where you are poining the beam. They are amazing tools and I love class 4 lasers of various wavelengths. Use to only have the 445nm burning lasers now were seeing 470 which is just awesome! Always wear properly rated safety goggles when setting up. As XM360 said these things are no joke!

Dude your mind is in the right place

Super cool!

i just got mine. its brightness is equal parts terrifying and badass.

I recommend the 800mW 532nm PLE PRO from jetlasers that will go over 1 watt

I think its engineered to expand the width at distance,because you could imagine the nut cases aiming at a pilot of a plane what could happen.Or in Australia when in the summer time it is very hot and very dry,we have bush fires that ass holes set on fire on purpose.

Great for pointing out exotic objects in the night sky.

Interesting stuff. I just got a 3w 450nm and am being very cautious using it. This one looks like a potential future purchase but I want to learn a bit more about them and safe use of them. Cheers!

Strypo operates laser 10X the intensity in his room lol

Light Sabre!✨

The last laser I dealt with was 7/100 of one watt and it plugged into a wall outlet. It was the size of a weirdly shaped loaf of bread (3 inches by 3.5 inches by 15 inches, roughly) and weighed a couple of pounds. I was told it used 2 one-way mirrors facing each other.

Looks cool! I’m the guy that bought the nano s

Just keep in mind watching this laser displayed on a wall will blind you.Wear laser glasses

I'm new at lasers as i just got my first 303's but have been interested in them for ages. What keeps me from buying the 7W Striker is the price, the shape of the beam at long distances (even with the expander) and the stupidity of people as you can be sure you'll be in trouble over here even if you just aim it at the sky avoiding planes... I'll probably buy one eventually, just hope they don't discontinue it for some reason.

As you know you could slim the beam down really well using spacial filtration. but It would take up some space,

I ordered this laser a couple of years ago directly from Sanwu. I was extremely impressed with the quality of this laser. I still play with it all the time! It can burn stuff like you wouldn't believe! It could easily be used for personal protection as it will permanently blind you in a fraction of a second. A little pricey but money well spent. Overall I give this Laser 10 out of 10.

Nice review. It's too bad that the laser goes wide too fast.

Good video. A favor, I look so powerful, but infrared. Thank you

Hey do a review on a 1W green laser, I’m in the market and would love to see you review one you think is worth it.

Looks like a Light Saber. :)

Visible blue beam in daylight, that's insane.. Nice review!

That’s a beast of a laser! Have you got plans to review a Sanwu 1watt 520nm laser? There are not many reviews of that wavelength and power.

I have a survival laser S4X host that's ready to be used. My Nubm44-v2 laser diode came in today so I'm just waiting on my SXD 4.5A driver

I’m afraid just watching this video without safety glasses holy crap.

Wooohooooo! Not Your Father's Mountain Ale. That's some pretty good stuff....

I love your videos ...now it's time to make a video with Zeus 7 watt haha

Got a 3Watt green laser for my reflective telescope,and its pretty powerful, cant imagine what you would do with 7watt. Anyways looks cool, the light sabre motif would really make it hard to not go all Jedi warrior.

That's the kind of laser that makes you want to dress in your Jedi wardrobe, drop some dry ice in the bucket, and pull out the Kodak :D

Can these laser be used to protect themselves from certain situation under attacks or emergency situation?

WOW!!!! What an Incredibly Powerful, and dramatic, impressive looking device! Great review!!! I wonder how many accidental fires might result from careless use of such a tool?! GEEZ!!!! => BE CAREFUL out there!!!!

Great review. At what point...how far away, will it not burn anything

Well wildfires may not be caused by "your" laser...they are caused by lockheed martin's...

Those high power 445nm multimode diodes are horrible with fast axis divergence. Beam expanders help a lot. Camera zoom lenses work well if you can fit one to the laser. Little loss but still powerful! I actually use mine as a thermite igniter. Thermite is difficult to ignite, not with a 445 or even 405nm laser. 1W is all that's needed if close and focused, 4+W is needed to ignite from a reasonable distance when focused to infinity.

I have several lasers. This one is pretty nice. I've built many larger ones exceeding 100w as well. On my channel. I wear ThorLabs LG10C model goggles (220$ OD7.8 @ 445nm) Safety should always be taken extremely serious with these. One wrong glint outside off something shiny will probably scare/startle you bad enough to dropping it....seeing that much luminal power zipping around... Its wicked and scary. I have a 85w...105w...and a 74w handheld I built myself. And a Barnnet 7w handheld similar to this. But this one is a little nicer machined wise. But performs wonderful. And is nice looking as well.

Note: Some old 3 W versions sold at Bangkok markets were infrared on the actual output and visible was the 1st harmonic as blue. No toy to given into layman's hands.

Can you burn a gas station from a security distance with one of these? 😁😁💥🔥

fascinating that this made it through customs. Extremely dangerous to the eye

Finally an excelent quality laser featured on this channel, about time! Cheers

ok just a quick correction, beam expansion doesnt depend on power levels. it depends on frequency, beam waste (actual laser rod) or focusing lens. doesnt depend on power.

When you think about it just a few hundred years ago in New England (or anywhere else in the world) this device would have branded you as a sorcerer and probably burned at the stake. Nowadays being able to burn things at a distance is no longer magic. It is really fun, but no big deal. If someone asks you, "are you a wizard?", just smile and say yes.

This is a great piece of electronics. I question as to what was the reason you bought it for? OK, It looks cool and it lights things on fire and it's got a great looking beam. Here is the top question of the day. What are you going to do with it? It cost you money. Is it just one of those things your glad you bought it just because you wanted it.

I think about getting one

Question: With this and many other lasers being so dangerous to view without quality safety glasses how much danger does this laser pose to anyone near me when I point it up into the sky or just using in any conditions? Do onlookers also need safety glasses?

CAN YOU IMAGINE WHAT KIND OF LASERS THE MILITARY USES OR DARPA ??

You've gotta love the Chinese!

ha! i knew it was only a matter of time befroe the 26650 was used for laser pointers. i suggested it back in around 2009-10.

I have found putting this type of laser in flashlight type of setting was very good spooking pochers

my girlfriend has one just like that...oh ...thats a laser

7 watt? 7000 milliwatts?? Crazy

xm360:''this is the first laser i'm actually afraid of that could burn down my house'' styropyro:

Nice video, I was into lasers a few years ago and there were no reviews on RU-vid (only one website-the LPF). great work! I really want a 300+mw green, can you recommend one? I don't know if laser btb or Jetlasers are still reliable... I might check LPF if I can remember my PW lol.

Damn you really have to treated like a lightsaber

PLEASE believe me when I say I’m not being sarcastic or trolling. This is exceedingly cool (no pun intended), but I’m not sure what this is for. Is there a practical use? For just fun, demonstrations, and experimental purposes, I guess I get it, but it seems there’s so much potential downside to using it. A powerful device, to be sure!

That beam divergence is shocking.

7w is crazy!

So this can be used to laser point the ISS in space and see it on live feed?

This is the most expensive motorcycle ashtray I have ever seen.

Yikes, I forsee alot of little brothers growing up blind from sneaking into bedrooms to snoop through stuff. I suppose suggesting storing it without the batteries in it would also be wise. How is it for hare cuts, Doc?

_Thank you for reviewing this laser. I almost bought this one. I'm glad I watched this vid first. This laser may be 7w but it's beam quality is really trashy and the speed of your burning things reflects this. It seems no better if not worse than a 4w laser._

Wow i don't like that you have absolutly no beam at long distances. and for $50 more it should fix the beam completely. I'm glad you did this preview cause I don't want it now. Thanks for saving me the money.

Someone saw a mechanical Vape mod and said "hmmm..."

Excellent video, could you tell me the measurements of the beam at the output please. Thanks.

That brass ring is the casters mark that's what this laser tested at at the factory