Summary of efficiacy based on the testimonies and experience of numerous users of the products:

Some specific anecdotal evidence of efficacies from users of Qi-light system
Disease and disorder	Efficacy	Time achieved
Hypertension or high blood pressure	Baseline hypertension systolic pressure reading of up to 140mmHg is brought down to around 120mmHg and below.	Within 3 months of daily use.
Hypertension or High Blood Pressure	Sudden hypertension attack of more than 200 mmHg systolic level avoided.	Within one week of daily use.
Type 2 diabetes: pre-diabetic level	Baseline reading brought back to normal (disease was reversed)	Within 1 month of daily use.
Peripheral neuropathy – increased pain and reduced sensation in the fingers and toes (often related to diabetes)	Improved condition with reduced pain and increased sensory feedback	Within one week of daily use.
Sinusitis	Condition significantly reduced	Within one week of daily use, commonly even immediate
Migraine headaches	Incidences of condition avoided	Within one week of daily use, sometimes immediate
High LDL cholesterol	Condition mitigated with improved baseline reading	Within 3 months of daily use
Blur vision or retinopathy which could be due to diabetes or micro-circulatory occlusion to the eyes	Condition improved with clearer vision	Commonly immediate
Low energy level and tiredness	Increased energy level	Within one week of daily use
Reduced sports and physical performance	Improved performance	Within one week of daily use
Erectile dysfunction	Progressively improved condition	Within 2 weeks of daily use
Cold intolerance	Improved tolerance of cold temperatures	Within 2 weeks of daily use

The above can be verified with specific users. Results vary with individuals.

Non-specific anecdotal evidence of efficacies include overall wellness, improved immunity and reduces incidences of illness.

Purchasers of the products are backed by money-back guarantee if they do not benefit for their medical condition from the product within 3 months.