Geen Lasers At Sim Lim Square

Post by **Lee** » Fri Mar 14, 2008 12:57 pm

Saw some green lasers selling at good prices at Sim Lim squares.
Those interested might want to take a look.

#03-xx UF Technology
5-10mW S$ 50+ to S$ 80+

opp #02-11 (shop selling batteries, adapter, charges, etc)
5mW S$43 +
10mW S$45 +
>30mW S$100 +

100mW S$ 200 ; tested it & is superbright ; however can't get much tech spec.

Post by **weixing** » Fri Mar 14, 2008 1:53 pm

Hi,
Just wonder did they know that you need a licence to use a > 5mW laser??
Under the Radiation Protection (Non-Ionising Radiation) Regulations 1991,
any one found using class 3b & 4 lasers without licence in Singapore would be charged for violating the Act and could be fined up to maximum of not than $10,000 or imprisonment for a term of not exceeding 12 months or both.

Have a nice day.

Post by **Lee** » Fri Mar 14, 2008 2:17 pm

weixing wrote:Hi,
Just wonder did they know that you need a licence to use a > 5mW laser??
Under the Radiation Protection (Non-Ionising Radiation) Regulations 1991,
any one found using class 3b & 4 lasers without licence in Singapore would be charged for violating the Act and could be fined up to maximum of not than $10,000 or imprisonment for a term of not exceeding 12 months or both.

Have a nice day.

Some notes of the above RPR1991.

Class 3

A Class 3 laser or laser system can emit any wavelength, but it cannot produce a diffuse (not mirror-like) reflection hazard unless focused or viewed for extended periods at close range. It is also not considered a fire hazard or serious skin hazard. Any continuous wave (CW) laser that is not Class 1 or Class 2 is a Class 3 device if its output power is 0.5 W or less. Since the output beam of such a laser is definitely hazardous for intrabeam viewing, control measures center on eliminating this possibility.

According to the laser power, Class 3 is divided into two groups: Class 3A and Class 3B. Under the class 3A, the output power of visible lasers is located in 1 - 5mW. It is generally thought that the beam will be unsafe to human eyes. To expose eyes to the laser radiation would result in a permanent retina damages. It is prohibited that eye or skin exposure direct to the laser beam. Under the class 3B, the output power is between 5 - 500mW. The ones of invisible lasers are higher than 500mW. The eye retina will be heavily injured when exposed to the laser radiation under this class. It is prohibited that people stare into the beam including the reflected and scattered beam from high reflecting surfaces.

BTW, the counter girl who is selling the laser mentions that those lasers are meant for astronomy use but no mention of any regulation.

iohutom · Post by **iohutom** » Thu Mar 20, 2008 1:01 am

wayyyy tooooo expensive. I can get 30mws for less than 80 sgd.

Clifford60 · Post by **Clifford60** » Thu Mar 20, 2008 8:45 pm

iohutom wrote:wayyyy tooooo expensive. I can get 30mws for less than 80 sgd.

30mW rated or unrated (the label said so)? Unrated 50mW can be around the same price too or even cheaper, of course no from S'pore

wAi_kiT · Post by **wAi_kiT** » Mon Mar 24, 2008 4:48 pm

Hah, don't anyhow buy wo... That time I buy one (those no brand one), then after some time, I take out play play... The beam defocus liao... Saddened.. Then now i buy Wicked Lasers de...

ariefm71 · Post by **ariefm71** » Mon Mar 24, 2008 5:06 pm

guys, please don't play play with these high powered lasers. it's illegal to own >5 mW laser without license

Tachyon · Post by **Tachyon** » Mon Mar 24, 2008 5:08 pm

I saw <30 mW green laser at computer shop in Keypoint selling for $39. It's on the label. I tried it out and it looked as bright as my <5mW green laser.

I suspect it's the same. After all, <30mW can be 2mW, no?

Post by **rcj** » Mon Mar 24, 2008 5:17 pm

got mine from sam lee for SGD$40. looks good, and functions well. he may have more lobangs.

ariefm71 · Post by **ariefm71** » Mon Mar 24, 2008 5:47 pm

ok, i gotta get one of these