EXHIBIT 12.1



CERTIFICATION
OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER PURSUANT TO

EXCHANGE ACT
RULE 13A-14(A)/15D-14(A)

AS ADOPTED PURSUANT
TO SECTION 302

OF THE SARBANES-OXLEY
ACT OF 2002



I, Uri Orbach, certify that:



1.        
    I have reviewed this Annual Report on Form 20-F of L&S Light & Strong, Ltd.;



2.            
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary
to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to
the period covered by this report;



3.           
 Based on my knowledge, the financial statements, and other financial information included in this report, fairly present
in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods
presented in this report;



4.           
  I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e)
and 15d-15(e)) for the registrant and have:



| | a. | Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to me by others within those entities, particularly during the period in which this report is being prepared;
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| | b. | [intentionally omitted]
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| | c. | Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
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| | d. | Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
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5.           
  I have disclosed, based on my most recent evaluation of internal control over financial reporting, to the registrant’s
auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):



| | a. | All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
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| | b. | Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.
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|/s/ Uri Orbach                 | 
|------------------------------ | 
|Uri Orbach                     | 
|Chief Executive Officer and    | 
|Acting Chief Financial Officer | 
|                               | 
|Date: April 21, 2016           |