This battery charger is certified with Singapore Safety Mark for use with Delta Portable Water Jet.
Chargers belong to the 45 categories of Controlled Goods under the Consumer Protection (Safety Requirements) Registration Scheme, and are required to carry the SAFETY Mark. The SAFETY Mark can be found on either the product itself or its packaging.
Adapters without the SAFETY Mark do not meet SPRING Singapore’s safety requirements and may thus lack the proper safeguards and insulation required to prevent short circuiting, fire, electric shock or even electrocution.
More info: https://www.spring.gov.sg/Building-Trust/Raising-Confidence/Safety-Tips-Alerts/Documents/Power_Adapters.pdf