Choose between these arm lights by their actual output, colour control, mounting and power connection. “21W” and “25W” each cover different models; booth size or product price alone cannot choose the right one.
Four current BOOTH LIGHTS models
| Model | Published light output | Colour control | Power connection |
|---|---|---|---|
| 21W 2400lm standalone | 2400 lm | Fixed: choose 3000K, 4500K or 6500K | DC24V fixture; included adapter input AC85–245V. Individually powered. |
| 21W 2100lm standalone | 2100 lm | Fixed: choose 2800–3200K, 4200–4500K or 6500–7000K | AC85–265V input via supplied power cord. Individually powered. |
| 25W multi-mount | 3250 lm | Fixed: choose 3000K, 4500K or 6000K | AC85–245V input; compatible units can be linked. |
| 25W Tri-CCT | 2500 lm | Button selects 3000K, 4500K or 6000K | AC85–245V input; compatible units can be linked. |
These are the current listing values, not specifications for every light at these wattages. The two 21W models in this table cannot be daisy-chained, despite wording in an older URL. The Tri-CCT model has three steps, not continuous tuning or an implied dimming function.
Compare useful coverage
The 3250lm model has about 35% more stated output than the 2400lm model; the 2500lm Tri-CCT model has only about 4% more. Lumens describe total output, not the brightness or uniformity on a particular panel. Test the actual graphic at the intended distance and aim, including edges, shadows, reflections and visitor glare. Choose quantities from this test rather than assuming two 25W lights replace three or four 21W lights.
Check mounting and cabling
The 2400lm light has a built-in rear clamp; the 2100lm light includes an ABS mounting adapter. The multi-mount 25W includes an aluminum clamp and two sliding inserts; Tri-CCT includes an aluminum clamp. Measure the frame profile, clearance and permitted load. These are different mounting arrangements, not universal frame compatibility.
The two 25W listings state a maximum of ten compatible lights per run. Use specified connectors and follow the lowest cable, connector, circuit and venue limit. Provide an individual power connection for each of these 21W lights. Never join incompatible models because the wattage is similar.
Confirm the complete kit
Four fixtures labelled 21W total 84W nominally, compared with 100W for four labelled 25W. For supply planning, check the complete kit’s input, including adapters and other equipment, and the event’s connection rules. A wide input range does not establish venue acceptance. Confirm the exact variant’s documents, plug, included parts, weight and delivered price. Choose fixed CCT if it suits the display; choose Tri-CCT if testing shows value in changing among its three settings.