Bedside light should reach a book and the switch without exposing the bulb to either person lying in bed.
Start with the problem, not the product photograph
A few centimetres can expose a bulb or put glass in a door path. For Bedside Tiffany lamp height and glare check, measure the complete three-dimensional envelope.
Photograph the proposed position straight on and from the side. Record the full dimensions, lampholder, bulb, connection method and the main task. A close product image rarely shows room scale, door movement or the angle from which a bare bulb becomes visible.
Three distinct decisions
1. Decide the job before the style
Set the shade opening relative to mattress and eye height rather than copying a generic bedside dimension.
Keep this evidence: write the main task and the one constraint that could rule the fitting out.
2. Measure the real fitting envelope
Measure mattress top, lying eye height, table height, shade bottom and horizontal distance from pillow to bulb.
Keep this evidence: record every dimension from one named reference point and photograph the tape measure in place.
3. Test the result from normal positions
Lie on both sides, read, turn the lamp off and move during the night; repeat with the intended LED, not a phone torch.
Keep this evidence: repeat the check by day and after dark, using the bulb and furniture layout you expect to keep.
Worked calculation
Shade opening relative to eye level
G = E − O
Variables: G is the vertical separation, E is lying eye height above floor and O is the shade-opening height.
Example: If the eye is 860 mm above floor and the opening is 920 mm, G = 860 − 920 = −60 mm: the opening is 60 mm above the eye. Confirm the bulb is still shielded from both pillows.
The calculation gives a planning check, not an installation approval. Confirm the maker’s dimensions, use a full-size mock-up and let the appropriately qualified person decide structural and fixed-wiring details.
A real TiffanyLight.co.nz product as the worked case
15 cm Tiffany-style table lamp
A compact table lamp used for bedside and small-surface comparisons where every centimetre of clearance matters.
This model demonstrates the method; it is not an automatic recommendation. Draw its complete dimensions, verify the current electrical specification and test the proposed light in the real room. Product details can change, so check the live page before buying.
Confirm on the product page: total dimensions, weight, voltage and connection, lampholder, maximum wattage, included parts and installation conditions.
Practical New Zealand home scenario
Build the full shade diameter in lightweight card and place it at the stated height. Photograph it from the doorway, seat and closest route. Add a realistic margin; a choice that works only to the millimetre will fail when furniture moves or installation tolerances appear.
Common mistakes
- Confusing shade diameter with total fitting width.
- Forgetting doors, heads, curtains, cupboards and cleaning access.
- Rounding inch dimensions before drawing the template.
Final checklist
- All dimensions use the same reference point.
- The complete volume is mocked up at 1:1.
- Doors and walking routes remain clear.
- Seated and standing views are tested.
- Safe service access exists.
Record sheet: model, complete dimensions, total weight, voltage and connection, lampholder, chosen LED, position, mock-up photograph and check date. The current product information and maker’s instructions take priority over general guidance.