LEGO Light Sensor 9758-1
LEGO Light Sensor (9758-1) is estimated at about $18 sealed as of Sep 2026 (retail $20). Retired · 1 pieces · 1999 Mindstorms.
- Set number
- 9758-1
- Theme
- Mindstorms
- Subtheme
- 1.0
- Year
- 1999
- Pieces
- 1
- Minifigures
- 0
- RRP
- $20
- Market value
- $18 (Estimate, Sep 2026)
- Used value
- $5
- Retirement
- Retired
Light Sensor value by year
From $18 in 2022 to $18 (Estimate, Sep 2026): −2%. Its highest year was 2023, at $27.
| Year | Value | Change |
|---|---|---|
| Estimate, Sep 2026 | $18 | +0.6% |
| 2026 (so far) | $18 | +0.0% |
| 2025 | $18 | +0.0% |
| 2024 | $18 | −33.4% |
| 2023 | $27 | +46.9% |
| 2022 | $18 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO Light Sensor (9758-1) worth?
LEGO Light Sensor is worth approximately $18 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Light Sensor retired?
Yes — Light Sensor (9758-1) has been retired by LEGO and is no longer in production. Retired sets have fixed supply, which is why their prices are driven purely by the resale market.
Has LEGO Light Sensor gone up in value?
Not currently. Light Sensor launched at $20 and trades around $18 today, 9.4% below its retail price. The price history chart shows the full trend.
What is the price per piece for Light Sensor?
At its $20 retail price across 1 pieces, Light Sensor works out to about $19.750 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Light Sensor a good investment?
Light Sensor currently trades 9.4% below its $20 retail price, and it is retired, so no new supply is entering the market. Past performance is not a prediction — condition, packaging and how long you hold all affect what a set actually sells for. BrickStats reports the numbers rather than giving investment advice.
Why is LEGO Light Sensor so expensive?
Light Sensor was released in 1999 and has since retired. Once LEGO stops producing a set, the only supply is what is already in circulation, so sealed copies in good condition compete for a shrinking pool of stock. That scarcity, not the parts, is what moves the price.