Assertion: powered laser | /r/CapableOf | lack the ir filters
Facets:
value: because of additional efforts
type: CAUSE
value: usually
type: TEMPORAL
value: because of costs
type: CAUSE
Source sentences:
text: These higher-powered lasers are often packaged in the same pointer-style housings as regular laser pointers, and usually lack the IR filters found in professional high-powered DPSS lasers, because of costs and additional efforts needed to accommodate them.