To solve this problem, we need to analyze each statement to identify the incorrect one:$\newline \bullet$Option 1: Both ATP and NADPH+H$^+$ are synthesized during non-cyclic photophosphorylation.$\newline$ - Non-cyclic photophosphorylation involves both Photosystem I (PS I) and Photosystem II (PS II).$\newline$ - It results in the production of ATP and NADPH+H$^+. \newline$ - Therefore, this statement is correct.$\newline \bullet$Option 2: Stroma lamellae have PS I only and lack NADP reductase.$\newline$ - Stroma lamellae are known to contain only PS I and do not have PS II.$\newline$ - They also lack NADP reductase, which is involved in the reduction of NADP$^+$ to NADPH.$\newline$ - Therefore, this statement is correct.$\newline \bullet$Option 3: Grana lamellae have both PS I and PS II.$\newline$ - Grana lamellae, or thylakoid membranes, contain both PS I and PS II.$\newline$ - This is where the light-dependent reactions of photosynthesis occur.$\newline$ - Therefore, this statement is correct.$\newline \bullet$Option 4: Cyclic photophosphorylation involves both PS I and PS II.$\newline$ - Cyclic photophosphorylation involves only PS I and not PS II.$\newline$ - It results in the production of ATP but not NADPH.$\newline$ - Therefore, this statement is incorrect.$\newline$Thus, the incorrect statement is Option 4.